physical science test 2

inorganic chemistry is the study of compounds

associated with non-living things

the number of bonds between the carbon atoms in C2H2 is

3

an alkane with three carbon atoms has how many hydrogen atoms?

8

which is NOT a constituent of petroleum?

coke

compounds with the general structural formulas RCOOH are known as

carboxylic acids

the site of a chemical reaction on an organic molecule is usually

all of the answers are correct

organic compounds with two OH groups per molecule are called

glycol

cooking oils from plants like soybeans are hydrogenated in order to

turn them into shortening

fats and oils are

esters of glycerol and fatty acids

starch is a polymer formed by the linking of many

saccharides

nuclei with a higher than desired neutron-to-proton ratio tend to undergo which type of decay?

beta decay

which type of radiation ionizes atoms and molecules?

alpha, beta, and gamma

which type of radiation is really the nucleus of a helium atom?

alpha

what is the correct balance of this nuclear fission reaction?

102/39 Y

what type of radiation is released when 224/86 Rn decays to 220/84 Po?

alpha radiation

the decay rate of a radioactive isoptope can be increased by increasing the:

none of the above

the low level of ionizing radiation that is around you right now is called:

background radiation

a Geiger counter measures radiation indirectly by measuring:

electrons released by ionization

how do nuclear power plants work?

fission

besides U-235, another isotope that can readily undergo nuclear fission is:

Pu-239 (Plutonium-239)

which of the following household activities uses the most water?

toilet flushing

when a solvent is cooled, it will dissolve

more gas

a hydrogen bond is:

a force between a hydrogen atom of one polar molecule and another polar molecule

if a force of attraction between the ions in a solid is very strong, you could expect the solid to have:

low solubility in water

the water hardness in an area is reported as 700 ppm total dissolved soilds. this is the same concentration as:

.07%

during winter, what is the most likely temperature of the water at the bottom of Lake Superior?

4 degrees C (39 F)

Icebergs:

are nearly pure water

which of the following are properties of basic solutions?

they feel slippery

According to the modern definition, NH3 is:

a base because it can accept H+ ions from water

which of the following are properties of acidic solutions?

all of the answers are correct