Understanding stoichiometric reactions enables you to:
eliminate all toxic chemicals
In a balanced chemical equation, the molar ratio of two reactants is determined from the:
coefficient for each reactant
In a balanced chemical equation, the coefficients represent the relative numbers of:
All uncombined atoms, Molecules, Moles
In a chemical reaction, the total mass of the products compared to the total mass of the reactants is:
always equal
In using balanced equations to solve mass-mass problems, the mass of each reactant is first converted to:
Moles
The number of moles of a reactant or product is determined by dividing its mass by:
the molar mass of the substance
In mass-mass problems, the steps to follow are best summarized as going from:
grams to moles to moles to grams
The first step in any stoichiometric problem is:
balancing the equation
The mass of a reactant or product can be determined by multiplying the number of moles of the substance by the:
molar ratio of reactants to products
The limiting reactant in a completed chemical reaction will be the substance:
used up
The excess reactant in a completed chemical reaction will be the substance:
left over
Which molecule is In Excess in the reaction pictured?
H2
In the picture, what is the Mole Ratio for hydrogen reacting with chlorine?
1:01
The balanced equation P4 (s) + 6H2 (g) -> 4PH3 (g) tells us that 3moles of H2:
produces 2mol PH3
An excess of Al and 6.0 mol of Br2 are reacted according to the equation 2Al + 3Br2 -> 2AlBr3How many moles of ALBr3 will be formed?
4.0moles
When balanced in standard form (smallest whole numbers), the coefficient for CO2 is:
12
What mass of O2 is required to react completely with 25g of C6 H14?
88.2
What mass of carbon dioxide can be produced from 25 g of C6 H14?
76.5
A state function is dependent on the pathway of the process: T or F
FALSE
The SI unit of energy is joule. T or F
TRUE
When energy is used, the quantity decreases while the quality stays the same. T or F
FALSE
The chemical energy stored in coal is an example of:
Potential energy
Which of the following is a statement of the law of conservation of energy?
In any process, energy is neither created nor destroyed
The energy possessed by objects because of their position or the arrangement of their particles is called:
Potential Energy
Which of the objects illustrates potential energy?
The boulder
The amount of products formed in a chemical reaction is determined by the amount of the:
limiting reactant
In a balanced chemical equation, how do you determine the limiting reactant?
complete a mass-mass problem for each reactant
The amount of product that should be produced based on stoichiometric calculations is the:
Expected yield
Which concept allows you to relate the coefficients of a balanced chemical equation to actual amounts of reactants or products?
Conservation of Mass
Which drawing shows the products of a reaction between Hydrogen and Chlorine?
Cl is attached to one H and one H is bonded to another
Which of the following is exothermic?
Burning of a match
The device used to determine the heat associated with a chemical reaction is called a:
Calorimeter
The quantity of heat required to change the temperature of 1g of a Substance by 1C is:
The specific heat capacity
As a ball rolls down a hill, the potential energy _______ and the kinetic energy _________.
Decreases, Increases
The sum of the kinetic and potential energies of all the...in the system is called the:
Internal energy
Which of the following statements are true?
The quality of the energy of the universe generally decreases
Heat is typically measured in:
Joules
The fossil fuel ___ was formed from the remains of plants that were buried and exposed to high pressure and heat over time.
Coal
Which of the following is a valid unit for specific heat capacity?
J/g Degrees C
Which of the following is a measure of the random motions of the components.
Tempature
The coal with the highest energy available per unit burned is:
Anthracite
When the system does work on the surroundings, the sign of work is
negative
Kinetic energy depends on:
The mass and velocity of the object
The measure of disorder or randomness is termed by:
entrpoy
When heat flows into the system ,the sign of heat is:
positive
Natural gas consists mostly of:
Methane
A 5.1G sample of iron is heated from 36 to 75C. The amount of energy required is 89.5J. The specific heat capacity of this sample of iron is:
0.450 J/g C
The 2nd law of thermodynamics tells us that:
The entropy of the universe is always increasing
The 1st law of thermodynamics states:
The energy of the universe is not constant
The flow of energy due to a temperature difference is called:
heat
At Constant Pressure, the heat absorbed/realeased during a chemical reaction is equal to:
The Enthalpy Change
What principle relates the enthalpy change for a net reaction to the enthalpy changes of a series of summed reactions?
Hess' Law
What happens to ΔH if a chemical equation is reversed?
It changes in sign
Which reactions are exothermic?
W(g) -> X(g) -> Y(g) & 2Y(g) -> Z(g)
Which reactions are endothermic?
W(s) -> W(g) & Z(s) -> Z(g)
What is the specific heat of liquid water?
4.184 J/g C
Which of the following is the correct relationship between joules and calories?
1 Calorie = 4.184 Joules
The capacity to do work is called:
energy
One mole of CO2 at STP will occupy a molar volume of:
22.4liters
If Temperature and Pressure are constant, the volume and number of moles of a gas (Avogadro's Law) are:
directly proportional
What volume will 2 mol of N2 occupy at STP?
????? (chapter 13, question 19)
What would happen to the average kinetic energy of the molecules of a gas sample if the Temperature of the sample increased from 20C to 40C?
It would increase
Which of these statements are True about kinetic molecular theory?
Pressure is due to the collisions of the gas particles with the walls of the container
In a softdrink, CO2 (g) is a _____ and water is the _____.
Solute, Solvent
What term is used by chemists to quantitatively describe a solution in which a relatively small amount of solute is dissolved?
Unsaturated
A nitric acid solution that is 70% HNO3 (by mass) contains
70g HNO3 & 30g Water
Which of the following is a product of all neutralization reactions?
Water
One equivalent of an acid is the amount of acid that will product
1mole of hydrogen ions
Adding solute to a liquid increases the boiling point by:
blocking the water molecules
Common strong acids include:
HCl
Another name for an acid-base reaction is:
Neutralization Reaction
When temperature is increased, the solubility of a Gas typically:
decreases
Air, the gas we are most familiar with, consists of:
a mix of several different kinds of gases
Which of the following is NOT a property of gases?
Gases are weightless near the surface of the earth.
The characteristics of gases needed to describe completely include all EXCEPT:
density
The most useful unit for describing the AMOUNT of a gas is the:
mole
An instrument used to measure the pressure exerted by a gas in a CLOSED container is:
Manometer
What are the standard conditions of Temperature and Pressure? (STP)
0C and 1atm pressure
If the amount and Temperature of a gas are kept constant, the pressure and volume (Boyle's Law) of the gas are:
inversely Proportional
The normal boiling point of water is:
100C (375K)
The bonds between the hydrogen and oxygen atoms in a water molecule are:
Intra-molecular forces
At 1atm of pressure and 0C temperature, which phase of H2O can exist?
Ice and Water
Which of the following should have the lowest boiling point?
N2
Order Intermolecular forces from Weakest to Strongest:
London Dispersion, Dipole-Dipole, Hydrogen Bonding, Ionic
When a sample of a gas is kept at constant pressure, the volume and ____ (Charles's Law) of the gas are:
Directly proportional (Chapter 13, question 8)
The temperature scale that has absolute zero as its zero point is the:
Kelvin Scale
The law of partial pressures of gases was formulated by:
Dalton
In a mix of gases, the total pressure of the mix is equal to:
The sum of the pressures exerted
The ideal gas law describes the behavior of real gases under:
Temperatures greater than 0C and 1atm or less
What temperature scale must be used when working with the Ideal Gas Equation?
Kelvin
R, the gas constant in the ideal gas equation, equals 0.08206. Units?
Atm-liter/mole-K
The air in the inner tube of the tire of a bike has a pressure of 115psi. Convert to atm:
7.83 atm
Which of the following laws will give you a graph with an inverted hyperbola?
Boyle's Law
solutions with water as the solvent are called:
Aqueous Solutions
Molarity is expressed as:
Moles of solute/liters of solution
To determine the concentration of a solution in moles, you need to know all EXCEPT:
mass of solvent
A solution that contains as much solute as can possibly be dissolved is:
Saturated
Ionic Solids dissolve best in liquid solvents that are:
Polar
Why can water dissolve NaCl, whereas hexane cannot?
Its a polar solvent, water is attracted to both anions and cations
The rate at which a SOLID solute can be dissolved in a liquid solvent can be increased by:
grinding the solute into small pieces
Colligative properties of solutions depend on the:
Concentration of the solute molecules dissolved
Which of the following is true for ionic solids dissolved in water?
Solution will conduct electricity
Name the type of crystalline solid formed by SiO2
Molecular solid
Name the type of crystalline solid formed by Copper
Atomic Solid
Name the type of crystalline solid formed by potassium bromide
Ionic Solid
Which of the following has the highest melting temperature?
MgF2
As the atmospheric pressure around a liquid decreases, the boiling temperature of the liquid:
Decreases
As the Tempature of a liquid increases, the vapor pressure of the liquid generally:
Increases
Describe 4 physical properties of water:
Definite Volume, Tasteless, Ordorless, Colourless
An unually strong Dipole-Dipole force that occurs between Hydrogen and Highly electronegative atoms:
hydrogen? (Chapter 14, question 9)
A homogeneous mix in which the components are uniformly mixed:
solution
Which of the following is (are) a unit of concentration?
All; Normality, Molarity, Mass Percent
In the process of making a dilution, the amount of ___ stays the same.
Solute
Escape of vapor molecules with sufficiently high energy from the surface of a liquid:
Evaporation
An example of an interstitial alloy is:
Steel
An alloy that has different atoms substituted for the host metal atoms is called:
substitutional
At the boiling point of a substance, the Vapor Pressure:
Is equal to the atmospheric pressure
The energy required to melt 1mol of a substance is the:
molar heat of fusion
The weak intermolecular attraction between noble gases:
London Dispersion Forces
Identify the major attractive force in each of the following molecules:
H2O-Hydrogen Bonding NaCl-Ionic N2-DipoleDipole
The normal freezing point of water is::
273K (0C, 32F)
The intermolecular forces called Hydrogen Bonding WON'T exist between molecules of:
H2
Which of the following is not a conjugate acid-base pair?
H2PO4, HPO3 ^2
The fact that HCL(aq) is a strong acid meanas that Cl is a:
weak conjugate base
Which of the following is NOT a strong acid?
H C2 H3 O2 or CH3 COOH
Which of the following must be TRUE if a solution is to be considered basic?
[H+] < [OH-]
Calculate the [H] in a solution that has a pOH of 3.7
5.0 x 10^11 M
Calculate the [H] in a solution that shows a pH of 11.7:
2.0 x 10^-12 M
A solution has [OH]=4.0 x 10^-5 M. The pOH of this solution is:
7.4
Calculate the [H] in a solution that has a pH of 5.21
6.2 x 10^-8
A solution has a pH of 6.49. The pOH of this solution is:
7.51
Which of the following is TRUE for a buffered solution?
All; Will resist any change in its [H], solution will not change its pH very much, even if a strong base or concentrated acid is added, Any [H] ions added will react with a conjugate base of a weak acid already in solution
In the Arrhenius definition, a base is a substance that:
Furnishes hydroxide ions in water solution
Bronsted-Lowry definition, an acid is a substance:
that donates a proton
Substances that change colour when added to acids/bases are:
Indicators
A substance that can act as either an acid or base is:
Amphoteric
A conjugate acid-base pair consists of two substances that:
differ by only a proton
The relative strengths of acids are determined by the extent to which the acid particles:
dissociate in water
The strength of a Bronsted-Lowry base is determined by its:
attraction for protons
Which of the following could be a conjugate acid-base pair?
Strong Acid, Weak Base
Which categories contain members with the -COOH group?
Carboxylic acids
HNO3 is an example of what type of acid?
Oxyacid
The point in titration when the pH reaches 7.0 is called the:
equivalence point
The plot of pH against volume of titrant is the:
Titration curve
A solution that is basic in nature has a pH that is:
greater than 7
The ion-product constant for water (Kw) is:
1.0 x 10^-14
Rank the following from smallest to largest by atomic size:
O,Zn,Ca,Ba
Which of the following exhibits the correct orders for both atomic size and ionization energy, respectively?
F,O,S & S,O,F
Magnesium reacts with sulfer to form:
MgS
Calcium reacts with fluorine to form:
CaF2
The max number of electrons allowed in an F sublevel is:
14
The max number of electrons allowed in the P sublevel of the third principal level is:
6
Which of the following is an Incorrect designation for an atomic orbital?
1p
The electron configuration for the oxygen atom is:
1s^2 2s^2 2p^4
The elements Chlorine and Iodine have similar chemical properties because they:
have the same number of electrons in their outer energy levels
The Alkali metals (group 1) have how many valence electrons?/
1
The noble gases contain how many valence electrons?
8
When moving down a group in the periodic table, the number of valence electrons:
remains constant
The abbreviated electron configuration for Manganese is:
[Ar] 4s^2 3d^5
Which theory is used to account for the shapes of molecules?
VSEPR theory
What shape does a carbon dioxide molecule have?
linear
What shape does a boron trifluoride (BR3) molecule have?
trigonal planar
The shape of a methane (CH4) molecule is:
tetrahedral
What shape does a water molecule have?
Bent
What si the bond angle of a water molecule?
105 degrees
How are the electrons shared in a bond between Oxygen and Carbon?
Oxygen attracts them more
Anions are always ____and cations are always ____ than the parent atoms
Larger, Smaller
When electrons are shared Unequally, chemists characterize these types of bonds as:
polar covalent
Which of the following atoms has the highest ionization energy?
Cl
Which of the following atoms has the smallest atomic size?
N
Of the metals in Group 1, which has the Highest ionization energy?
Li
A pachet of energy of electromagnetic radiation is called:
A photon
The max number of electrons allowed in the 4th energy level is:
32
Sodium has how many electrons in it's outermost principal energy level?
1
Which of the following is the highest energy orbital for a silicon atom?
3p
Which one of the following atoms has a partly filled d sublevel?
Ni
Atoms with greatly differing electronegativity values are expected to form
Ionic Bonds
Metals typically have __ electronegativity values
low
nonmetal elements typically have ___electronegativities
high
The most electronegative element is:
Li
Which of the following elements have the lowest electronegativity?
Ba
If atom X forms a diatomic molecule with itself, the bond is:
Nonpolar covalent
When a molecular has a center of positive charge & center of negative charge, it has a:
Dipole moment
A phosphorus atom needs to gain __ electrons to achieve a noble gas configuration.
3
The electron configuration for the bromide Ion is identical to that of:
Kr
When electrons are in the lowest energy orbitals available, the atom is:
in ground state
The distance between two successive peaks in a wave is called:
the wavelength
The ___ indicates the number of waves that pass a given point per second.
Frequency
The electron cloud is least dense where the probability of finding an electron is:
lowest
All p orbitals are shaped like:
Dumbbells (lobes)
The 3s orbital differ from the 2s orbital in that it is:
larger
The energy levels of atoms are ____, meaning that only certain discrete energy levels are allowed
quantized
As the principal energy level increases, the average distance of an electron energy level from the nucleus:
increases
What is the max number of electrons a d-orbital can hold?
2
Which of these ions have the same electron configuration as Ar?
Cl
In an ionic bond, how does a nitrogen atom most commonly achieve an octet of electrons?
Cl?? (Chapter 12, number 11
how does a covalent bond differ from an ionic bond?
An ionic bond is the transfer of electrons and a colvalent bond is the sharing of electrons
In a double bond between two atoms, the total number of shared electrons is:
4
Which of the following bonds is primarily covalent?
O-N
A bond is classified as Nonpolar covalent if the difference in the electronegativities between two atoms is:
less than 0.5
Light has the properties of:
Both particles and waves
Which of the following is not a form of electromagnetic radiation?
sound waves
What is the symbol for wavelength?
λ
Which of the following has the longest wavelength?
Radio waves
The quantum (wave)-mechanical model explains the atom by treating the:
Electron as a wave of quantized energy
The probability of finding electrons in certain regions of an atom is described by:
orbitals
How is an electron's principal quantum number symbolized?
n
The number of sublevels found in each principal energy level of an atom are equal to:
the principal quantum number
Under what conditions can two electrons occupy the same orbital?
if the have opposite spins
In general, a larger atom has a smaller electronegativity. T or F
TRUE
An N -- F bond is expected to be more polar than O -- F bond. T or F
TRUE
Ch4 has ionic bonds. T or F
FALSE
The F and O2 ions have the same electron configuration. T or F
TRUE
Chemical compounds are always electrically charged. T or F
FALSE
An atom will gain, lose, or share electrons in order to achieve a noble gas configuration. T or F
TRUE
A positively charged ion:
Is formed when an atom loses electrons
When a potassium atom becomes an ion, it:
loses one electron
When a calcium atom becomes an ion, it:
loses two electrons
All of the following atoms have an octet of electrons except:
O
Chemistry Cards
Understanding stoichiometric reactions enables you to:
Chemistry Cards
In a balanced chemical equation, the molar ratio of two reactants is determined from the:
Chemistry Cards
In a balanced chemical equation, the coefficients represent the relative numbers of:
Chemistry Cards
In a chemical reaction, the total mass of the products compared to the total mass of the reactants is:
Chemistry Cards
In using balanced equations to solve mass-mass problems, the mass of each reactant is first converted to:
Chemistry Cards
The number of moles of a reactant or product is determined by dividing its mass by:
Chemistry Cards
In mass-mass problems, the steps to follow are best summarized as going from:
Chemistry Cards
The first step in any stoichiometric problem is:
Chemistry Cards
The mass of a reactant or product can be determined by multiplying the number of moles of the substance by the:
Chemistry Cards
The limiting reactant in a completed chemical reaction will be the substance:
Chemistry Cards
The excess reactant in a completed chemical reaction will be the substance:
Chemistry Cards
Which molecule is In Excess in the reaction pictured?
Chemistry Cards
In the picture, what is the Mole Ratio for hydrogen reacting with chlorine?
Chemistry Cards
The balanced equation P4 (s) + 6H2 (g) -> 4PH3 (g) tells us that 3moles of H2:
Chemistry Cards
An excess of Al and 6.0 mol of Br2 are reacted according to the equation 2Al + 3Br2 -> 2AlBr3How many moles of ALBr3 will be formed?
Chemistry Cards
When balanced in standard form (smallest whole numbers), the coefficient for CO2 is:
Chemistry Cards
What mass of O2 is required to react completely with 25g of C6 H14?
Chemistry Cards
What mass of carbon dioxide can be produced from 25 g of C6 H14?
Chemistry Cards
A state function is dependent on the pathway of the process: T or F
Chemistry Cards
The SI unit of energy is joule. T or F
Chemistry Cards
When energy is used, the quantity decreases while the quality stays the same. T or F
Chemistry Cards
The chemical energy stored in coal is an example of:
Chemistry Cards
Which of the following is a statement of the law of conservation of energy?
Chemistry Cards
The energy possessed by objects because of their position or the arrangement of their particles is called:
Chemistry Cards
Which of the objects illustrates potential energy?
Chemistry Cards
The amount of products formed in a chemical reaction is determined by the amount of the:
Chemistry Cards
In a balanced chemical equation, how do you determine the limiting reactant?
Chemistry Cards
The amount of product that should be produced based on stoichiometric calculations is the:
Chemistry Cards
Which concept allows you to relate the coefficients of a balanced chemical equation to actual amounts of reactants or products?
Chemistry Cards
Which drawing shows the products of a reaction between Hydrogen and Chlorine?
Chemistry Cards
Which of the following is exothermic?
Chemistry Cards
The device used to determine the heat associated with a chemical reaction is called a:
Chemistry Cards
The quantity of heat required to change the temperature of 1g of a Substance by 1C is:
Chemistry Cards
As a ball rolls down a hill, the potential energy _______ and the kinetic energy _________.
Chemistry Cards
The sum of the kinetic and potential energies of all the...in the system is called the:
Chemistry Cards
Which of the following statements are true?
Chemistry Cards
Heat is typically measured in:
Chemistry Cards
The fossil fuel ___ was formed from the remains of plants that were buried and exposed to high pressure and heat over time.
Chemistry Cards
Which of the following is a valid unit for specific heat capacity?
Chemistry Cards
Which of the following is a measure of the random motions of the components.
Chemistry Cards
The coal with the highest energy available per unit burned is:
Chemistry Cards
When the system does work on the surroundings, the sign of work is
Chemistry Cards
Kinetic energy depends on:
Chemistry Cards
The measure of disorder or randomness is termed by:
Chemistry Cards
When heat flows into the system ,the sign of heat is:
Chemistry Cards
Natural gas consists mostly of:
Chemistry Cards
A 5.1G sample of iron is heated from 36 to 75C. The amount of energy required is 89.5J. The specific heat capacity of this sample of iron is:
Chemistry Cards
The 2nd law of thermodynamics tells us that:
Chemistry Cards
The 1st law of thermodynamics states:
Chemistry Cards
The flow of energy due to a temperature difference is called:
Chemistry Cards
At Constant Pressure, the heat absorbed/realeased during a chemical reaction is equal to:
Chemistry Cards
What principle relates the enthalpy change for a net reaction to the enthalpy changes of a series of summed reactions?
Chemistry Cards
What happens to ΔH if a chemical equation is reversed?
Chemistry Cards
Which reactions are exothermic?
Chemistry Cards
Which reactions are endothermic?
Chemistry Cards
What is the specific heat of liquid water?
Chemistry Cards
Which of the following is the correct relationship between joules and calories?
Chemistry Cards
The capacity to do work is called:
Chemistry Cards
One mole of CO2 at STP will occupy a molar volume of:
Chemistry Cards
If Temperature and Pressure are constant, the volume and number of moles of a gas (Avogadro's Law) are:
Chemistry Cards
What volume will 2 mol of N2 occupy at STP?
Chemistry Cards
What would happen to the average kinetic energy of the molecules of a gas sample if the Temperature of the sample increased from 20C to 40C?
Chemistry Cards
Which of these statements are True about kinetic molecular theory?
Chemistry Cards
In a softdrink, CO2 (g) is a _____ and water is the _____.
Chemistry Cards
What term is used by chemists to quantitatively describe a solution in which a relatively small amount of solute is dissolved?
Chemistry Cards
A nitric acid solution that is 70% HNO3 (by mass) contains
Chemistry Cards
Which of the following is a product of all neutralization reactions?
Chemistry Cards
One equivalent of an acid is the amount of acid that will product
Chemistry Cards
Adding solute to a liquid increases the boiling point by:
Chemistry Cards
Common strong acids include:
Chemistry Cards
Another name for an acid-base reaction is:
Chemistry Cards
When temperature is increased, the solubility of a Gas typically:
Chemistry Cards
Air, the gas we are most familiar with, consists of:
Chemistry Cards
Which of the following is NOT a property of gases?
Chemistry Cards
The characteristics of gases needed to describe completely include all EXCEPT:
Chemistry Cards
The most useful unit for describing the AMOUNT of a gas is the:
Chemistry Cards
An instrument used to measure the pressure exerted by a gas in a CLOSED container is:
Chemistry Cards
What are the standard conditions of Temperature and Pressure? (STP)
Chemistry Cards
If the amount and Temperature of a gas are kept constant, the pressure and volume (Boyle's Law) of the gas are:
Chemistry Cards
The normal boiling point of water is:
Chemistry Cards
The bonds between the hydrogen and oxygen atoms in a water molecule are:
Chemistry Cards
At 1atm of pressure and 0C temperature, which phase of H2O can exist?
Chemistry Cards
Which of the following should have the lowest boiling point?
Chemistry Cards
Order Intermolecular forces from Weakest to Strongest:
Chemistry Cards
When a sample of a gas is kept at constant pressure, the volume and ____ (Charles's Law) of the gas are:
Chemistry Cards
The temperature scale that has absolute zero as its zero point is the:
Chemistry Cards
The law of partial pressures of gases was formulated by:
Chemistry Cards
In a mix of gases, the total pressure of the mix is equal to:
Chemistry Cards
The ideal gas law describes the behavior of real gases under:
Chemistry Cards
What temperature scale must be used when working with the Ideal Gas Equation?
Chemistry Cards
R, the gas constant in the ideal gas equation, equals 0.08206. Units?
Chemistry Cards
The air in the inner tube of the tire of a bike has a pressure of 115psi. Convert to atm:
Chemistry Cards
Which of the following laws will give you a graph with an inverted hyperbola?
Chemistry Cards
solutions with water as the solvent are called:
Chemistry Cards
Molarity is expressed as:
Chemistry Cards
To determine the concentration of a solution in moles, you need to know all EXCEPT:
Chemistry Cards
A solution that contains as much solute as can possibly be dissolved is:
Chemistry Cards
Ionic Solids dissolve best in liquid solvents that are:
Chemistry Cards
Why can water dissolve NaCl, whereas hexane cannot?
Chemistry Cards
The rate at which a SOLID solute can be dissolved in a liquid solvent can be increased by:
Chemistry Cards
Colligative properties of solutions depend on the:
Chemistry Cards
Which of the following is true for ionic solids dissolved in water?
Chemistry Cards
Name the type of crystalline solid formed by SiO2
Chemistry Cards
Name the type of crystalline solid formed by Copper
Chemistry Cards
Name the type of crystalline solid formed by potassium bromide
Chemistry Cards
Which of the following has the highest melting temperature?
Chemistry Cards
As the atmospheric pressure around a liquid decreases, the boiling temperature of the liquid:
Chemistry Cards
As the Tempature of a liquid increases, the vapor pressure of the liquid generally:
Chemistry Cards
Describe 4 physical properties of water:
Chemistry Cards
An unually strong Dipole-Dipole force that occurs between Hydrogen and Highly electronegative atoms:
Chemistry Cards
A homogeneous mix in which the components are uniformly mixed:
Chemistry Cards
Which of the following is (are) a unit of concentration?
Chemistry Cards
In the process of making a dilution, the amount of ___ stays the same.
Chemistry Cards
Escape of vapor molecules with sufficiently high energy from the surface of a liquid:
Chemistry Cards
An example of an interstitial alloy is:
Chemistry Cards
An alloy that has different atoms substituted for the host metal atoms is called:
Chemistry Cards
At the boiling point of a substance, the Vapor Pressure:
Chemistry Cards
The energy required to melt 1mol of a substance is the:
Chemistry Cards
The weak intermolecular attraction between noble gases:
Chemistry Cards
Identify the major attractive force in each of the following molecules:
Chemistry Cards
The normal freezing point of water is::
Chemistry Cards
The intermolecular forces called Hydrogen Bonding WON'T exist between molecules of:
Chemistry Cards
Which of the following is not a conjugate acid-base pair?
Chemistry Cards
The fact that HCL(aq) is a strong acid meanas that Cl is a:
Chemistry Cards
Which of the following is NOT a strong acid?
Chemistry Cards
Which of the following must be TRUE if a solution is to be considered basic?
Chemistry Cards
Calculate the [H] in a solution that has a pOH of 3.7
Chemistry Cards
Calculate the [H] in a solution that shows a pH of 11.7:
Chemistry Cards
A solution has [OH]=4.0 x 10^-5 M. The pOH of this solution is:
Chemistry Cards
Calculate the [H] in a solution that has a pH of 5.21
Chemistry Cards
A solution has a pH of 6.49. The pOH of this solution is:
Chemistry Cards
Which of the following is TRUE for a buffered solution?
Chemistry Cards
In the Arrhenius definition, a base is a substance that:
Chemistry Cards
Bronsted-Lowry definition, an acid is a substance:
Chemistry Cards
Substances that change colour when added to acids/bases are:
Chemistry Cards
A substance that can act as either an acid or base is:
Chemistry Cards
A conjugate acid-base pair consists of two substances that:
Chemistry Cards
The relative strengths of acids are determined by the extent to which the acid particles:
Chemistry Cards
The strength of a Bronsted-Lowry base is determined by its:
Chemistry Cards
Which of the following could be a conjugate acid-base pair?
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Which categories contain members with the -COOH group?
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HNO3 is an example of what type of acid?
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The point in titration when the pH reaches 7.0 is called the:
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The plot of pH against volume of titrant is the:
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A solution that is basic in nature has a pH that is:
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The ion-product constant for water (Kw) is:
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Rank the following from smallest to largest by atomic size:
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Which of the following exhibits the correct orders for both atomic size and ionization energy, respectively?
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Magnesium reacts with sulfer to form:
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Calcium reacts with fluorine to form:
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The max number of electrons allowed in an F sublevel is:
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The max number of electrons allowed in the P sublevel of the third principal level is:
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Which of the following is an Incorrect designation for an atomic orbital?
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The electron configuration for the oxygen atom is:
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The elements Chlorine and Iodine have similar chemical properties because they:
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The Alkali metals (group 1) have how many valence electrons?/
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The noble gases contain how many valence electrons?
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When moving down a group in the periodic table, the number of valence electrons:
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The abbreviated electron configuration for Manganese is:
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Which theory is used to account for the shapes of molecules?
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What shape does a carbon dioxide molecule have?
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What shape does a boron trifluoride (BR3) molecule have?
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The shape of a methane (CH4) molecule is:
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What shape does a water molecule have?
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What si the bond angle of a water molecule?
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How are the electrons shared in a bond between Oxygen and Carbon?
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Anions are always ____and cations are always ____ than the parent atoms
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When electrons are shared Unequally, chemists characterize these types of bonds as:
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Which of the following atoms has the highest ionization energy?
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Which of the following atoms has the smallest atomic size?
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Of the metals in Group 1, which has the Highest ionization energy?
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A pachet of energy of electromagnetic radiation is called:
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The max number of electrons allowed in the 4th energy level is:
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Sodium has how many electrons in it's outermost principal energy level?
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Which of the following is the highest energy orbital for a silicon atom?
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Which one of the following atoms has a partly filled d sublevel?
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Atoms with greatly differing electronegativity values are expected to form
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Metals typically have __ electronegativity values
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nonmetal elements typically have ___electronegativities
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The most electronegative element is:
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Which of the following elements have the lowest electronegativity?
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If atom X forms a diatomic molecule with itself, the bond is:
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When a molecular has a center of positive charge & center of negative charge, it has a:
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A phosphorus atom needs to gain __ electrons to achieve a noble gas configuration.
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The electron configuration for the bromide Ion is identical to that of:
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When electrons are in the lowest energy orbitals available, the atom is:
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The distance between two successive peaks in a wave is called:
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The ___ indicates the number of waves that pass a given point per second.
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The electron cloud is least dense where the probability of finding an electron is:
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All p orbitals are shaped like:
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The 3s orbital differ from the 2s orbital in that it is:
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The energy levels of atoms are ____, meaning that only certain discrete energy levels are allowed
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As the principal energy level increases, the average distance of an electron energy level from the nucleus:
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What is the max number of electrons a d-orbital can hold?
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Which of these ions have the same electron configuration as Ar?
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In an ionic bond, how does a nitrogen atom most commonly achieve an octet of electrons?
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how does a covalent bond differ from an ionic bond?
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In a double bond between two atoms, the total number of shared electrons is:
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Which of the following bonds is primarily covalent?
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A bond is classified as Nonpolar covalent if the difference in the electronegativities between two atoms is:
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Light has the properties of:
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Which of the following is not a form of electromagnetic radiation?
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What is the symbol for wavelength?
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Which of the following has the longest wavelength?
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The quantum (wave)-mechanical model explains the atom by treating the:
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The probability of finding electrons in certain regions of an atom is described by:
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How is an electron's principal quantum number symbolized?
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The number of sublevels found in each principal energy level of an atom are equal to:
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Under what conditions can two electrons occupy the same orbital?
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In general, a larger atom has a smaller electronegativity. T or F
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An N -- F bond is expected to be more polar than O -- F bond. T or F
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Ch4 has ionic bonds. T or F
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The F and O2 ions have the same electron configuration. T or F
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Chemical compounds are always electrically charged. T or F
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An atom will gain, lose, or share electrons in order to achieve a noble gas configuration. T or F
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A positively charged ion:
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When a potassium atom becomes an ion, it:
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When a calcium atom becomes an ion, it:
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All of the following atoms have an octet of electrons except: