physical science ch.12

an organic compound consisting only of carbon and hydrogen is called a

hydrocarbon

carbon to carbon bonds are

covalent

all of the following are hydrocarbon groups except: alkanes, alkenes, alkynes, alkalines

alkalines

the group -C2H5 is called

ethyl

Compounds with the same molecular formulas but with different structures are called

isomers

hydrocarbons with double bonds are the

alkenes

a hydrocarbon with a carbon to carbon triple bond is an

alkyne

hydrocarbons that have one to four carbon atoms are

gases

the process where large hydrocarbons are converted into smaller ones is called

cracking

the atom or group of atoms in an organic molecule that is the site of a chemical reaction is called the

functional group

a hydroxyl, -OH, functional group is found in

alcohols

the oxidation of ethanol, C2H5OH, produces

acetic acid

an organic compound is a compound that

contains carbon, whether it was formed by a living thing or not

there are millions of organic compounds but only thousands inorganic compounds because

carbon atoms can combine with up to four other atoms including other carbon atoms

you know for sure that the compound named decane has

more than 10 isomers, 10 carbon atoms in each molecule and only single bonds

an alkane with four carbon atoms would have how many hydrogen atoms in each molecule

10

isomers are compounds with the same

molecular formula with different structures

isomers have

different physical and chemical properties

the organic compound trimethylpentane is an isomer of

octane

which of the following would not occur as an unsaturated hydrocarbon? alkane, alkene or alkyne?

alkane

petroleum is believed to have formed mostly from the anaerobic decomposition of buried

plankton and algae

the label on a container states that the product contains "petroleum distillates." Which of the following hydrocarbons is probably present? CH4, C5H12, C16H34, C40H82

C5H12

The reaction C2H2 + Br2 -> C2H2Br2 is a

addition reaction

ethylene molecules can add to one another in a reaction to form a long chain called a

polymer

chemical reactions usually take place on an organic compound at the site of a

double bond, lone pair of electrons, or functional group

the R in ROH represents

a hydrocarbon group with a name ending in -yl

the OH in ROH represents

a functional group

What is the proof of a "wine cooler" what is 5 percent alcohol by volume?

10 proof

an alcohol with two hydroxyl groups per molecule is called an

glycol

a bottle of wine that has 'gone bad' contains

CH3COOH

a protein is a polymer formed from the linking of many

amino acid molecules

which of the following is not converted to blood sugar by the human body?

cellulose

fats from animals and oils from plants have the general structure of an

ester

liquid oils from plants can be converted to solids by adding what to the molecules?

hydrogen

the basic difference between a monomer of polyethlene and a monomer of polyvinyl chloride is

the replacement of hydrogen by a chlorine

many synthetic polymers become a problem in the environment because they

do not readily decompose and tend to accumulate

which of the following terms does not describe an alkane? Paraffin, single bonds, double bonds or straight chain

double bonds

a straight chain with four carbons is called

butane

what is the general formula for alkenes?

CnH2n

An organic molecule that does not contain the maximum number of hydrogen atoms is called

unsaturated

what is the general formula for an alkyne?

CnH2n-2

Acetylene is fuel used in welding and an important to reactant in the synthesis of plastics. Acetylene is an

alkyne

aromatic hydrocarbons are often used as

solvents

fractional distillation separates different fractions by differences in their

boiling point

the rate of combustion of gasoline is quantified by

octane number

a petroleum product that is composed of hydrocarbons with 16 to 18 carbone atoms per molecule is

motor oil

the organic acid that is found in sour milk, pickles, and in your muscles as a product of carbohydrate metabolism is

lactic acid

what are the organic compounds that are used in perfumes and for artificial flavors?

esters

sugars, starches and cellulose belong to which class of organic compounds?

carbohydrates

a mixture of alkanes, cycloalkanes and some aromatic hydrocarbons

petroleum

formed when one or more hydrogen atoms on a hydrocarbon have been replaced by some element or group of elements other than hydrogen

hydrocarbon derivatives

the atom or group of atoms in an organic molecule that is the site of a chemical reaction

functional group

a very large molecule that is a combination of many smaller, similar molecules joined together in a chainlike structure

macromolecule

organic molecules with acid and amino functional groups

amino acids

simple sugars, the smallest units that have the characteristics of carbohydrates and can be combined to make larger complex carbohydrates

monosaccharides

two monosaccharides joined together

disaccharides

polymers consisting of monosaccharide units joined together in straight or branched chains

polysaccharides

a group of complex carbohydrates composed of many glucose units that plants use as a stored food source

starches

a polysaccharide that is abundant in plants, forming the fibers in cell walls that preserve the structure of plant materials

cellulose