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32 notecards = 8 pages (4 cards per page)

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Chem

front 1

Which of the following statements about gases is false?

a. gases are highly compressible

b. all gases are colorless and odorless at room temperature

c. distances between molecules of gas are very large compared to bond distances

back 1

B. all gases are colorless and odorless at room temperature

front 2

One significant difference between gases and liquids is that______

a. a gas may consist of both elements and compounds

b. gases are always mixtures

c. a gas assumes the volume of its containter

d. a gas is made up of molecules

back 2

c. a gas assumes the volume of its container

front 3

Molecular compounds of low molecular weight tend to be gases at room temperature which of the following is most likely not a gas at room temperature

back 3

LiCL

front 4

An ideal gas equation calculations, expressing pressure in pascals, necessitates the use of gas constant R equal to

back 4

8.314 J mol -1K-1

front 5

The first person to investigate the relationship between pressure of a gas and its volume was

back 5

Robert Boyle

front 6

The force of gas particles against the walls of a container are called

back 6

pressure

front 7

Which stated about atmospheric pressure is false?

a. air actually has weight

b. atmospheric pressure prevents water in lakes, rivers, oceans from boiling away

c. with an increase in altitude, atmospheric pressure increasses as well

back 7

C- with an increase in altitude, atmospheric pressure increases as well

front 8

of the following, _____________is a correct statement of boyles law

back 8

C- PV=constant

front 9

Isothermal means

back 9

at constant temperature

front 10

Which of the following is a valid state of Avogadros law?

back 10

v=constant x n

front 11

Standard temperature and pressure (STP) in the context of gases, refers to

back 11

273.15K and 1 atm

front 12

The kinetic-molecular theory predicts that pressure rises as the temperature of a gas increases because

back 12

both the gas molecules collide more frequently with the wall and gas molecules collide more energetically with the wall

front 13

an ideal gas differs from a real gas in that the molecules of an ideal gas

back 13

have no attraction for one another

front 14

what unit of temperature is used in gas law calculations

back 14

kelvin

front 15

all atoms of a given element have the same

back 15

atomic number

front 16

atoms containing radioactive nuclei are called

back 16

radioisotopes

front 17

what happens to the mass number and the atomic number of an element when it undergoes beta decay?

back 17

the mass number does not change and the atomic number increases by 1

front 18

which is a correct representation of a beta particle

back 18

no data

front 19

which is a correct representation of an alpha particl

back 19

no data

front 20

which is a correct representation of a positron

back 20

no data

front 21

which of the following processes results in an increase in the atomic number

back 21

beta emission

front 22

of the following processes which one changes the atomic number

back 22

all of the proccesses change atomic number

front 23

which type of radioactive decay results in no change in mass number and atomic number for starting nucleus

back 23

gamma

front 24

atoms with the same atomic number and different mass numbers are

back 24

are isotopes

front 25

at approximately what number of protons or neutrons does the 1:1 ration of protons to neutrons start to produce unstable nuclei

back 25

20

front 26

which of the nuclides is most likely to be radioactive

back 26

no data

front 27

which of the following can be done to shorten the half life of the radioactive decay of uranium 238

back 27

none of the above

front 28

what type of reaction is known as a thermonuclear reaction?

back 28

fusion

front 29

which of the following forms of radiation can penetrate to the deepest into body tissues

back 29

gamma

front 30

What drives the turbine in a nuclear power plant?

back 30

steam

front 31

Which of the following types of radiation has the highest energy?

back 31

y-rays

front 32

in the sun, nuclei of hydrogen combine to form a larger nucleus and release a great amount of energy. the process is knowsn as

back 32

fusion