Wavelengths

Question 1

Atmospheres lowest to highest:

Answer 1

troposphere, stratosphere, mesosphere, thermosphere, exosphere

Question 2

Factors in risk assessment for air pollutants?

Answer 2

toxicity and exposure

Question 3

Carbon monoxide

Answer 3

silent killer

Question 4

ozone froms from

Answer 4

oxygen atom and oxygen molecule

Question 5

there is a _____ of ozone in the stratosphere

Answer 5

dynamic steady state

Question 6

speed of light dependent on

Answer 6

wavelength and frequency

Question 7

DNA is damaged by

Answer 7

UV light <320 nm

Question 8

What contributes to the ozone hole?

Answer 8

chlorofluorocarbons

Question 9

Stratospheric levels of atomic chlorine and ozone are _____ proportional

Answer 9

inversely

Question 10

List the wavelengths weakest to strongest

Answer 10

radio wave, microwave, infrared, visible, UV, x-ray, gamma

Question 11

Which process plays the most important role in the greenhouse effect?

Answer 11

energy radiated by earth being absorbed by atmosphere

Question 12

ionic bond is between a

Answer 12

metal and nonmetal

Question 13

molecular bond is between a

Answer 13

nonmetal and nonmetal

Question 14

groups on the periodic table are

Answer 14

columns

Question 15

periods on the periodic table are

Answer 15

horizontal

Question 16

two left groups are, left to right:

Answer 16

alkali metals and alkali earth metals

Question 17

four right groups are, right to left:

Answer 17

noble gases, halogens, chalcogens, pnictogens

Question 18

to get from the mass of a sample to the number of moles,

Answer 18

divide by formula weight

Question 19

to get from the number of atoms/molecules to the number of moles,

Answer 19

divide by avogadro’s. number

Question 20

a mole is

Answer 20

the number of carton atoms in twelve grams of carbon 12

Question 21

atomic mass, or the mass number, is

Answer 21

the weight of an atom determined by the sum of the protons and neutrons in an atom

Question 22

atomic mass is

Answer 22

the weighted average mass of the atoms in a naturally ocuring sample of the element

Question 23

molecular mass is

Answer 23

the mass of a mole of an element expressed in grams

Question 24

How to express molecular mass from atomic mass?

Answer 24

express atomic mass and in grams

Question 25

Calculate the molecular mass of a covalent compound

Answer 25

add together the atomic mass/mass numbers of the elements

Question 26

tetrahedral geometry

Answer 26

four electron pairs

Question 27

trigonal bipyramidal geometry

Answer 27

five electron pairs

Question 28

octahedral geometry

Answer 28

six electron pairs