Chapter 2

Question 1

Whats a mixture?

Answer 1

a physical combination of 2 or more substances present in variable amounts

Question 2

What is parts per hundred?

Answer 2

percent

Question 3

Whats parts per million?

Answer 3

ppm

Question 4

What are the bad gases?

Answer 4

carbon monoxide, ozone, sulfur dioxide, and particulate matter

Question 5

What is risk assessment

Answer 5

evaluating scientific data and making predictions in an organized manner about probabilities of an occurrence

Question 6

Whats toxicity

Answer 6

intrinsic health hazard of a substance

Question 7

What is exposure

Answer 7

the amount of the substance encountered

Question 8

How to measure exposure?

Answer 8

the concentration in the air, the length of time, and the rate of breathing

Question 9

How does the concentration of air measure exposure?

Answer 9

The more toxic the pollutant, the lower its concentration limit is set

Question 10

How does the limit of time measure exposure?

Answer 10

Higher concentrations of the pollutant can be tolerated only briefly

Question 11

How does the rate of breathing measure exposure?

Answer 11

Breathing at a higher rate in poor air quality area, higher exposure

Question 12

What is air inversion

Answer 12

The increases of temperature with height (altitude)

Question 13

What are prefixes used for when naming binary compounds of nonmetals?

Answer 13

to designate the number of each type of element

Question 14

What is the prefix for 1 atom?

Answer 14

Mono

Question 15

What is the prefix for 2 atoms?

Answer 15

Di

Question 16

What is the prefix for 3 atoms?

Answer 16

Tri

Question 17

What is the prefix for 4 atoms?

Answer 17

Tetra

Question 18

What is the prefix for 5 atoms?

Answer 18

Penta

Question 19

What is the prefix for 6 atoms?

Answer 19

Hexa

Question 20

What is the prefix for 7 atoms?

Answer 20

Hepta

Question 21

What is the prefix for 8 atoms?

Answer 21

Octa

Question 22

What is the prefix for 9 atoms?

Answer 22

Nona

Question 23

What is the prefix for 10 atoms?

Answer 23

Deca

Question 24

Name N2O

Answer 24

2 nitrogen and one oxygen. 2=di and 1=mono

Dinitrogen monoxide

Question 25

Name Cl2F5

Answer 25

2 Chlorine and 5 Florine 2=di and 5=penta

dichlorine pentafluoride

Question 26

What ending does the second one of a binary nonmetal end in?

Answer 26

the second word ends in an -ide

Question 27

What is the exception when naming binary compounds of nonmetals?

Answer 27

Mono is dropped if there is only one atom in the first element

Question 28

How are chemical reactions characterized?

Answer 28

By the rearrangement of atoms when reactants are transformed into products

Question 29

What is the law of conservation of mass?

Answer 29

The number of atoms on each side of the arrow must be equal

Question 30

What are hydrocarbons

Answer 30

Compound that contains mainly carbon and hydrogen

Question 31

Is naming different for molecular compounds as opposed to binary compounds of nonmetals?

Answer 31

Yes

Question 32

What is the prefix for 1 carbon?

Answer 32

Meth

Question 33

What is the prefix for 2 carbons?

Answer 33

Eth-

Question 34

What is the prefix for 3 carbons?

Answer 34

Prop-

Question 35

What is the prefix for 4 carbons?

Answer 35

But-

Question 36

What is the prefix for 5 carbons?

Answer 36

Pent-

Question 37

What is the prefix for 6 carbons?

Answer 37

Hex-

Question 38

What is the prefix for 7 carbons?

Answer 38

Hept

Question 39

What is the prefix for 8 carbons?

Answer 39

Oct-

Question 40

How to do ppm?

Answer 40

Move the decimal place over 4 times to the right

Question 41

How much nitrogen is inhaled when we breathe air?

Answer 41

78%

Question 42

How much oxygen is inhaled when we breathe air?

Answer 42

21%

Question 43

How much Argon is inhaled when we breathe air?

Answer 43

.9%

Question 44

How much carbon dioxide is inhaled when we breathe air?

Answer 44

.04%