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SLS 262 > Chapter 2 > Flashcards

Chapter 2 Flashcards

1
Q

Whats a mixture?

A

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

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2
Q

What is parts per hundred?

A

percent

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3
Q

Whats parts per million?

A

ppm

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4
Q

What are the bad gases?

A

carbon monoxide, ozone, sulfur dioxide, and particulate matter

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5
Q

What is risk assessment

A

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

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6
Q

Whats toxicity

A

intrinsic health hazard of a substance

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7
Q

What is exposure

A

the amount of the substance encountered

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8
Q

How to measure exposure?

A

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

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9
Q

How does the concentration of air measure exposure?

A

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

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10
Q

How does the limit of time measure exposure?

A

Higher concentrations of the pollutant can be tolerated only briefly

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11
Q

How does the rate of breathing measure exposure?

A

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

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12
Q

What is air inversion

A

The increases of temperature with height (altitude)

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13
Q

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

A

to designate the number of each type of element

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14
Q

What is the prefix for 1 atom?

A

Mono

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15
Q

What is the prefix for 2 atoms?

A

Di

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16
Q

What is the prefix for 3 atoms?

A

Tri

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17
Q

What is the prefix for 4 atoms?

A

Tetra

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18
Q

What is the prefix for 5 atoms?

A

Penta

19
Q

What is the prefix for 6 atoms?

A

Hexa

20
Q

What is the prefix for 7 atoms?

A

Hepta

21
Q

What is the prefix for 8 atoms?

A

Octa

22
Q

What is the prefix for 9 atoms?

A

Nona

23
Q

What is the prefix for 10 atoms?

A

Deca

24
Q

Name N2O

A

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

Dinitrogen monoxide

25
Q

Name Cl2F5

A

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

dichlorine pentafluoride

26
Q

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

A

the second word ends in an -ide

27
Q

What is the exception when naming binary compounds of nonmetals?

A

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

28
Q

How are chemical reactions characterized?

A

By the rearrangement of atoms when reactants are transformed into products

29
Q

What is the law of conservation of mass?

A

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

30
Q

What are hydrocarbons

A

Compound that contains mainly carbon and hydrogen

31
Q

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

A

Yes

32
Q

What is the prefix for 1 carbon?

A

Meth

33
Q

What is the prefix for 2 carbons?

A

Eth-

34
Q

What is the prefix for 3 carbons?

A

Prop-

35
Q

What is the prefix for 4 carbons?

A

But-

36
Q

What is the prefix for 5 carbons?

A

Pent-

37
Q

What is the prefix for 6 carbons?

A

Hex-

38
Q

What is the prefix for 7 carbons?

A

Hept

39
Q

What is the prefix for 8 carbons?

A

Oct-

40
Q

How to do ppm?

A

Move the decimal place over 4 times to the right

41
Q

How much nitrogen is inhaled when we breathe air?

A

78%

42
Q

How much oxygen is inhaled when we breathe air?

A

21%

43
Q

How much Argon is inhaled when we breathe air?

A

.9%

44
Q

How much carbon dioxide is inhaled when we breathe air?

A

.04%

SLS 262 (3 decks)

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