1) The symbol for the element mercury is_.
A) Pb
B) Sn
C) Hg
D) Me
C) Hg
2) Homogeneous mixtures are also known as_.
A) substances
B) elements
C) solutions
D) solids
E) compounds
C) solutions
3) Iron has a density of 7.9 g/cm3. What is the mass of a cube of iron with the length of one side equal to 55.0 mm?
A) 4.3 x 10^2 g
B) 1.3 x 10^3 g
C) 2.3 x 10^2 g
D) 1.4 g
E) 2.1 x 104 g
B) 1.3 x 10^3 g.
4) Accuracy refers to_.
A) how close a measured number is to other measured numbers
B) how close a measured number is to the true value
C) how close a measured number is to the calculated value
D) how close a measured number is to zero
E) how close a meas
B) how close a measured number is to the true value
5) Of the following, is the smallest mass.
A) 2.5 x 10-2 mg
B) 2.5 x 10^10 ng
C) 25 kg
D) 2.5 x 10^15 pg
E) 2.5 x 10^9 fg
E) 2.5 x 10^9 fg
6) 45 m/s = ____ km/hr
A) 0.045
B) 1.6 x 10^2
C) 1.6 x 10^5
D) 2.7 x 10^3
E) 2.7
B) 1.6 x 10^2
7) The estimated costs for remodeling the interior of an apartment are: three 1-gallon cans of paint at $13.22 each, two paint brushes at $9.53 each , and $135 for a helper. The total estimated cost with the appropriate significant figures is $_____.
A) 1
C) 194 Note that only significant figures are required
8) Which calculation clearly shows a conversion between temperatures in degrees Celsius, t(�C), and temperature in Kelvins, T(K)?
A) T(K) = 273.15 - t(�C)
B) T(K) = t(�C)
C) T(K) = [t(�C) + 32] x 1.8
D) T(K) = [t(�C - 32] /1.8
E) T(K) = t(�C) + 273.15 .
E) T(K) = t(�C) + 273.15
9) Of the following, ______________ is the largest mass.
A) 25 kg
B) 2.5 x 10^15pg
C) 2.5 x 10^10 ng
D) 2.5 x 10^-2 mg
E) 2.5 x 10^9 fg
A) 25 kg
10) Water is considered to be a diatomic molecule because it is composed of two different atoms.
True
False
False ... it has 3 atoms 2 H and 1 O
11) Which one of the following is not an intensive property?
A) mass
B) density
C) boiling point
D) temperature
E) melting point
A) mass
12) How many liters of wine can be held in a wine barrel whose capacity is 26.0 gal? 1 gal = 4 qt = 1gal= 3.7854 L.
A) 6.87 x 10^3
B) 6.87
C) 0.146
D) 1.46 x 10^-4
E) 98.4
E) 98.4
13) Sn is the symbol for the element ?
Tin Sn comes from Stanum
14) Which of the following is an illustration of the law of constant composition?
A) Water boils at 100CC at 1 atm. pressure.
B) Water is a compound.
C) Water and salt have different boiling points.
D) Water is 11% hydrogen and 89% oxygen by mass.
E) Wate
D) Water is 11% hydrogen and 89% oxygen by mass.
15) A certain liquid has a density of 2.67 g/cm3. 1340 g of this liquid would occupy a volume of?
A) 50.2
B) 0.502
C) 35.8
D) 3.58.
E) 1.99 x 10 ^-3
B) 0.502
16) The symbol for the element potassium is
A) S
B) Pt
C) Ca
D) P
E) K
E) K
17) Which one of the following is a pure substance?
A) concrete
B) milk
C) sail water
D) elemental copper
E) wood
D) elemental copper
18) Temperature is a physical property that determines the direction of heat flow.
True
False
True
19) The law of constant composition applies to_.
A) heterogeneous mixtures
B) compounds
C) homogeneous mixtures
D) solutions
E) solids
B) compounds
20) A concise verbal statement or mathematical equation that summarizes a broad variety of observations and experiences is called a(n)_.
A) test
B) hypothesis
C) theory
D) experiment
E) law
E) law
21) What decimal power does the abbreviation pico represent?
A) 1 x 10^9
B) 1 x 10^6
C) 1 x 10^-1
D) 1 x 10^-15
E) 1 x 10^-12
D) 1 x 10^-12 ... (.1000, 000, 000, 000)
22) If matter is uniform throughout and cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an)_.
A) homogeneous mixture
B) mixture of elements
C) element
D) h
E) compound
23) What decimal power does the abbreviation f represent?
A) 1 x 10^-15
B) 1 x 10^ -12
C) 1 x 10^6
D) 1 x 10^-1
E) 1 x 10^3
A) 1 x 10^-15
24) Cu is the symbol for the element_.
Copper .. came from Cuprum
25) Which one of the following is true about the liter?
A) It is slightly smaller than a quart.
B) It contains 10** cubic centimeters.
C) It is slightly smaller than a gallon.
D) It is equivalent to a cubic decimeter.
E) It is the SI base unit for volume.
D) It is equivalent to a cubic decimeter .. 10 x 10 x 10
26) The length of the side of a cube (in cm) having a volume of 44.4 L is_.
A) 875
B) 0.354
C) 66.6
D) 35.4
E) 6.66
D) 35.4
27) Of the following, only________ is an extensive property.
A) density
B) mass
C) freezing point
D) temperature
E) boiling point
B) mass
28) The temperature of 25�C is in Kelvins.
A) 138
B) 166
C) 248
D) 298
E) 103
D) 298 .. 273 + 25
29) An element cannot_.
A) be part of a heterogeneous mixture
B) be a pure substance
C) interact with other elements to form compounds
D) be part of a homogeneous mixture
E) be separated into other substances by chemical means
E) be separated into other substances by chemical means
30) The quantity 1.0 mg/cm2 is the same as 1.0 x ____kg/m2.
A) 10^4
B)10^2
C) 10^-2
D) 10^-4
E) 10^-6
C) 10^-2
31) Expressing a number in scientific notation_.
A) allows to increase the number's precision
B) changes its value
C) removes ambiguity as to the significant figures
D) removes significant zeros
C) removes ambiguity as to the significant figures
32) Round the following number to four significant figures and express the result in standard exponential notation: 229.613
A) 2.296 x 10^-2
B) 0.2296 x 10^3
C) 22.96 x 10^-1
D) 229.6
E) 2.296 x 10^2
E) 2.296 x 10^2
33) 1 milligram =______micrograms
1000 micrograms
34) Which one of the following has the element name and symbol correctly matched?
A) Ag, silver
B) C, copper
C) Sn, silicon
D) P, potassium
E) Mg, manganese
A) Ag, silver
35) A wooden object has a mass of 10.782 g and occupies a volume of 13.72 mL What is the density of the object determined to an appropriate number of significant figures?
A) 8 x 10^-1 g/mL
B) 7.9 x 10^-1 g/mL
C) 7.86 x 10^-1 g/mL
D) 7.859 x 10^-1 g/mL
E)
D) 7.859 x 10^-1 g/mL
36) The correct result (indicating the proper number of significant figures) of the following addition is__________________
12
1.2
0.12
+ 0.012
A) 13
B) 13.3
C) 13.33
D) 13.332
E) none of the above
A) 13 ... note that it is asking for the significant figures ONLY
37) Which one of the following elements has a symbol that is not derived from its foreign name?
A) mercury
B) lead
C) aluminum
D) tin
E) copper
C) aluminum
38) The SI unit for mass is_.
A) gram
B) troy ounce
C) kilogram
D) pound
E) none of the above
C) kilogram
39) The SI unit of temperature is_.
A) K
B) �C
C) t
D) T
E) �F
A) K ... Kelvin
40) The symbol for the element magnesium is_.
A) Ne
B) Mg
C) Mn
D) Si
E) Rb
B) Mg
41) Which of the following is the same as 0.001 cm?
A) 0.01 cm
B) 0.01 mm
C) 0.01 m
D) 100 mm
E) 1 mm
B) 0.01 mm
42) If matter is uniform throughout and cannot be separated into other substances by physical means, it is
A) either an element or a compound
B) a compound
C) an element
D) a heterogeneous mixture
A) either an element or a compound
43) A separation process that depends on differing abilities of substances to form gases is called_.
A) filtration
B) distillation
C) solvation
D) chromatography
E) All of the above are correct.
B) distillation
44) Osmium has a density of 22.6 g/cm3. The mass of a block of osmium that measures 1.01 cm x 0.233 cm x 0.648 cm is _______ g.
A) 6.75 x 10^-3
B) 6.75 x 10^3
C) 3.45
D) 34.5
E) 148
C) 3.45
45) 1 picometer =_centimeters
A) 1 x 10^-8
B) 1 x 10^-12
C) 1 x 10^10
D) 1 x 10^-10
E) 1 x 10^8
D) 1 x 10^-10 cm
46) Round the number 0.08535 to two significant figures.
A) 0.08535
B) 0.085
C) 0.0854
D) 0.086
E) 0.09
B) 0.085
47) Which one of the following is an intensive property?
A) heat content
B) mass
C) temperature
D) volume
E) amount
C) temperature
48) One angstrom, symbolized A, is 10^-10 m. 1 cm3 = ________ A^3.
A) 10^-9
B) 10^-24
C) 10^30
D) 10^-30
E) 10^24
E) 10^24
49) The initial or tentative explanation of an observation is called a(n)_.
A) test
B) law
C) experiment
D) hypothesis
E) theory
D) hypothesis
50) What is the volume (in cm3) of a 63.4 g piece of metal with a density of 12.86 g/cm3?
A) .425
B) 19.5
C) 4.93
D) 6.65
C) 4.93
51) Which of the following has the same number of significant figures as the number 1.00310?
A) 5.119
B) 1 x 10^6
C) 199.791
D) 8.66
E) 100
C) 199.791.... this is a trick, it means the number of digits in this case 6
52) The density of silver is 10.5 g/cm3. A piece of silver with a mass of 61.3 g would occupy a volume of ____cm3.
A) 0.00155
B) 644
C) 0.171
D) 10.5
E) 5.84
E) 5.84
53) If an object is accelerating at a rate of 25 m/s2, how long (in seconds) will it take to reach a speed of 550 m/s? (Assume an initial velocity of zero.)
A) 2.3 x 10^2
B) 22
C) 1.2 x 10^4
D) 1.4 x 10^4
E) 0.045
B) 22
54) Which of the following are chemical processes?
1. rusting of a nail
2. freezing of water
3. decomposition of water into hydrogen and oxygen gases
4. compression of oxygen gas
______ select all that apply ______
A) 1,4
B) 2,3,4
C) 1, 3
D) 1,3, 4
E) 1,2
C) 1, 3
55) The density of mercury is 13.6 g/cm3. The density of mercury is _______kg/m3.
A) 1.36 x 10^8
B) 1.36 x 10^-2
C) 1.36 x 10^-5
D) 1.36 x 10^-5
E) 1.36 x 10^4
E) 1.36 x 10^4 , this answer maybe wrong, reason you cannot get a bigger number converting from gr to Kg
56) A combination of sand, salt, and water is an example of a______.
A) pure substance
B) compound
C) homogeneous mixture
D) heterogeneous mixture
E) solid
D) heterogeneous mixture
57) In which one of the following numbers are all of the zeros significant?
A) 00.0030020
B) 0.143290
C) 100.090090
D) 0.1000
E) 0.05843
C) 100.090090
58) The correct name for HClO2 is ______.
A) chloric acid
B) chlorous acid
C) hypochlorous acid
D) hypychloric acid
E) perchloric acid
B) Chlorous acid
59) Predict the charge of the most stable ion of bromine.
A) 2+
B) 1+
C) 2-
D) 3+
E) 1-
E) 1-
60) Which species below is the sulfite ion?
A) S^2-
B) SO2^-2
C) HS-
D) SO4^-2
E) SO3^-2
E) SO3^-2
61) Lithium is a_____ and magnesium is a______.
A) nonmetal, metal
B) metalloid, metalloid
C) metal, metal
D) metal, metalloid
E) nonmetal, nonmetal
C) metal, metal
62) Of the choices below, which one is not an ionic compound?
A) PCl5
B) NaCl
C) MoCl6
D) RbCl
E) PbCl2
A) PCl5
63) There are ____ electrons, _____ protons, and _____ neutrons in an atom of 132 / 54 Xe.
A) 78, 78, 54
B) 78, 78,132
C) 54, 54, 78
D) 54, 54,132
E) 132,132,54
C) 54, 54, 78 ... 54 prot, 54 elect and the total less 132 amu = 78
64) Which one of the following basic forces is so small that it has no chemical significance?
A) strong nuclear force
B) gravity
C) electromagnetism
D) weak nuclear force
E) Coulomb's law
B) gravity
65) Of the following, ____ contains the greatest number of electrons.
A) p^2-
B) P^3-
C) P
D) P^2+
E) p^3+
B) P3-
66) Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties?
A) H, He
B) O, S
C) K, Ca
D) Si, P
E) C, N
B) O, S ... there are in the same period column
67) Which species below is the nitrate ion?
A) N3-
B) NO3-
C) NH4+
D) N02-
E) N^3-
B) NO3-
68) The correct name for Mg(ClO3)2 is____.
A) manganese perchlorate
B) magnesium chlorate
C) manganese chlorate
D) magnesium perchlorate
E) magnesium chloroxide
B) magnesium chlorate
69) When a fluorine atom forms the fluoride ion, it has the same charge as the ion.
A) phosphate
B) ammonium
C) sulfite
D) sulfide
E) nitrate
E) nitrate
70) The correct name for SO is_.
A) sulfur monoxide
B) sulfite
C) sulfoxide
D) sulfate
E) sulfur oxide
A) sulfur monoxide
71) Which group in the periodic table contains only nonmetals?
A) 6A
B) 2B
C) 1A
D) 8A
E) 2A
D) 8A
72) Which species has 18 electrons?
A) 32S^-2
B) 64Cu^+2
C) 35C1
D) 39K
E) 27Al^+3
A) 32S^-2
73) The correct name for HIO2 is_.
A) hypoiodic acid
B) hydriodic acid
C) periodic acid
D) iodous acid
E) periodous acid
D) iodous acid
74) Elements in Group 17 are known as the _
A) alkaline earth metals
B) halogens
C) alkali metals
D) noble gases
E) chalcogens
B) halogens
75) The correct name for N2O5 is_
A) nitrogen oxide
B) nitrogen pentoxide
C) nitrous oxide
D) dinitrogen pentoxide
E) nitric oxide
D) dinitrogen pentoxide
76) The name of the ionic compound V2O3 is
A) vanadium oxide
B) vanadium (III) oxide
C) vanadium(II) oxide
D) divanadium trioxide
E) vanadium(III) trioxide
B) vanadium (III) oxide
77) The nucleus of an atom contains_.
A) protons
B) electrons
C) neutrons
D) protons, neutrons, and electrons
E) protons and neutrons
E) protons and neutrons
78) The charge on the iron ion in the salt Fe2O3 is_.
A) +3
B) +1
C) -6
D) +2
E) -5
A) +3
79) An element in the upper right corner of the periodic table
A) is definitely a metal
B) is either a metalloid or a non-metal
C) is definitely a metalloid
D) is either a metal or metalloid
E) is definitely a non-metal
E) is definitely a non-metal
80) The correct name for HNO2 is_.
A) nitric acid
B) hydrogen nitrate
C) hyponitrous acid
D) nitrous acid
E) pernitric acid
D) nitrous acid
81) The element X has three naturally occurring isotopes. The isotopic masses (amu) and % abundances of the isotopes are given in the table below. The average atomic mass of the element is amu.
Isotope Abundance Mas
159x 30.60 159.37
163X 15.79 162.79
164
A) 162.35
82) Which of the following elements is a metalloid?
A) C
B) Ga
C) In
D) Se
E) B
E) B
83)_typically form ions with a 2+ charge.
A) Transition metals
B) Chalcogens
C) Alkali metals
D) Halogens
E) Alkaline earth metals
E) Alkaline earth metals
84) Which pair of elements below should be the most similar in chemical properties?
A) C and O
B) K and Kr
C) B and As
D) Cs and He
E) I and Br
E) I and Br
85) The element X has three naturally occurring isotopes. The masses (amu) and % abundances of the isotopes are
given in the table below. The average atomic mass of the element is_amu.
Isotope Abundance (%) Mass (amu)
15X 28.60 15.33
17X 13.30 17.26
16X 5
B) 17.20
86) What group in the periodic table would the fictitious
..
element :X : be found?
.
__________________
7A ... (Halogen type)
87) An element that appears in the lower left corner of the periodic table is_
A) definitely a non-metal
B) either a metalloid or a non-metal
C) definitely a metal
D) definitely a metalloid
E) either a metal or metalloid
C) definitely a metal
88) The formula of the carbonate ion is _
A) C03^3-
B) C03^2-
C) CO-
D) C02-
E) C02^2-
B) C03^2-
89) Cathode rays are_.
A) atoms
B) x-rays
C) protons
D) neutrons
E) electrons
E) electrons
90) A molecule of water contains hydrogen and oxygen in a 1:8 ratio by mass. This is a statement of_
A) the law of constant composition
B) the law of conservation of mass
C) the law of conservation of energy
D) the law of multiple proportions
E) none of t
A) the law of constant composition
91) The name of the ionic compound KBrO4 is_.
A) potassium hypobromate
B) potassium perbromite
C) potassium perbromate
D) potassium bromide
E) potassium bromate
C) potassium perbromate
92) The correct name for HClO3 is_.
A) hydrochlorous acid
B) chloric acid
C) perchloric acid
D) chlorous acid
E) hydrochloric acid
B) chloric acid
93) Which element in the halogen family is the most electronegative?
__________
Fluorine (F)
94) Predict the empirical formula of the ionic compound that forms from magnesium and fluorine.
A) Mg2F3
B) MgF2
C) Mg2F
D) Mg3F2
E) MgF
B) MgF2
95) What is the formula for perchloric acid?
A) HClO
B) HClO3
C) HClO4
D) HCl
E) HClO2
C) HClO4
96) In the periodic table, the elements are arranged in_.
A) order of increasing atomic number
B) order of increasing metallic properties
C) order of increasing neutron content
D) reverse alphabetical order
E) alphabetical order
A) order of increasing atomic number
97) The empirical formula of a compound with molecules containing 12 carbon atoms, 14 hydrogen atoms, and 6
oxygen atoms is_.
A) C6H7O3
B) C2H4O
C) CHO
D) CH2O
E) C12H14O6
A) C6H7O3
98) Which metal forms cations of differing charges?
A) Sn
B) Cs
C) Al
D) Ba
E) K
A) Sn
99) Which combination of protons, neutrons, and electrons is correct for the isotope of copper, on 63/29 Cu?
A) 29 p+, 29 n�, 63 e-
B) 34 p+, 34 n�, 29 e-
C) 29 p+, 34 n�, 29 e-
D) 34 p+, 29 n�, 34 e-
E) 63 p+, 29 n�, 63 e-
C) 29 p+, 34 n�, 29 e-
100) Which of the following compounds would you expect to be ionic?
A) H2S
B) H20
C) CO2
D) SrCl2
E) SO2
D) SrCl2
101) The suffix -ide is used primarily_.
A) for polyatomic cation names
B) for the name of the first element in a molecular compound
C) for monatomic anion names
D) for monoatomic cations
E) to indicate binary acids
C) for monatomic anion names
102) Which element forms an ion with the same charge as the ammonium ion?
A) chlorine
B) calcium
C) potassium
D) oxygen
E) nitrogen
C) potassium
103) Magnesium and sulfur form an ionic compound with the formula_.
A) Mg2S3
B) Mg2S
C) MgS
D) Mg2S2
E) MgS2
C) MgS
104) Which one of the following polyatomic ions has tine same charge as the hydroxide ion?
A) phosphate
B) carbonate
C) ammonium
D) nitrate
E) Sulfate
D) nitrate
105) Which pair of elements is most apt to form an ionic compound with each other?
A) sulfur, fluorine
B) calcium, sodium
C) barium, bromine
D) oxygen, fluorine
E) nitrogen, hydrogen
C) barium, bromine
106) Elements in Group 16 are known as the_.
A) halogens
B) chalcogens
C) alkali metals
D) noble gases
E) alkaline earth metals
B) chalcogens
107) Which species below is the nitride ion?
A) NO2-
B) N3-
Q Na+
D) NO3-
E)NH4+
B) N3-
108) The name of the ionic compound (NH4)3PO4 is__.
A) ammonia phosphide
B) nitrogen hydrogen phosphate
C) ammonium phosphate
D) tetrammonium phosphate
E) triammonium phosphate
C) ammonium phosphate
109) A correct name for Fe(N03)2 is_.
A) ferrous nitrite
B) ferric nitrite
C) ferrous nitrate
D) ferric nitrate
E) iron nitrite
C) ferrous nitrate
110) Barium reacts with a polyatomic ion to form a compound with the general formula Ba3(X)2- What would be
the most likely formula for the compound formed between sodium and the polyatomic ion X?
A) Na2X2
B) Na2X
C) Na3X2
D) NaX
E) Na3X
E) Na3X
111) Which one of the following species has as many electrons as it has neutrons?
A) 19f-
B) 1H
C) 14C
D) 14C2+
E) 40Ca2+
A) 19f-
112) Which metal does not form cations of differing charges?
A) Na
B) Co
C) Sn
D) Fe
E) Cu
A) Na
NH4+
ammonium
H3O+
hydronium
CH3COO-
or
C2H3O2-
acetate
CN-
cyanide
OH-
hydroxide
ClO-
hypochlorite
ClO2-
chlorite
ClO3-
chlorate
ClO4-
perchlorate
NO2
nitrite
NO3-
nitrate
MnO4-
permanganate
CO3^2-
carbonate
HCO3-
hydrogen carbonate (or bicarbonate)
CrO4^2-
chromate
Cr2O7^2-
dichromate
O2^2-
peroxide
PO43-
phosphate
HPO4^2-
hydrogen phosphate
SO3^2-
sulfite
SO4^2-
sulfate
HSO4-
hydrogen sulfate (or bisulfate)
Anions
H-
hydride
Anions
F-
fluoride
Anions
Cl-
chloride
Anions
Br-
bromide
Anions
I-
iodide
Anions
O2-
oxide
Anions
S2-
sulfide
Anions
N3-
nitride