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Chemistry > 1st Semeste Review > Flashcards

1st Semeste Review Flashcards

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1
Q

What consumed in the preparation,production,or delivery of goods and services is an ________ water use

A

Indirect

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2
Q

Water use controlled by actual end user is an _____ water use

A

Direct

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3
Q

No fixed volume or shape

A

Gas

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4
Q

Definite volume but no fixed shape

A

Liquid

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5
Q

Fixed volume and fixed shape

A

Solid

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6
Q

What we found on top of ground is _____ water?

A

Surface

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7
Q

What collected underground in porous rock is _____ water ?

A

Ground

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8
Q

Separating liquid substances based on different in their boiling points?

A

Distalation

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9
Q

Separating solid particles from liquid by passing the mixture through a material that retains the solid particles?

A

Filtration

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10
Q

Water changing from a liquid to a gas state,leaving any impurities dissolved in it behind?

A

Evaporation

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11
Q

Properties that can be observed and measured without changing the chemical makeup of the substance are ______ properties

A

Physical

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12
Q

List 3 physical properties?

A

Density,color,crushing,melting

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13
Q

NaCL is a (compound,mixtures,element)

A

Compound

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14
Q

Na (compound,mixtures,element)

A

Element

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15
Q

Chocolate milk (compound,mixtures,element)

A

Mixture

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16
Q

Salt & pepper (compound,mixtures,element)

A

Mixture

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17
Q

Au (compound,mixtures,element)

A

Element

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18
Q

CuCL2 (compound,mixtures,element)

A

Compound

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19
Q

Contains relatively large particles that settle out ____

A

Suspension

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20
Q

Contains particles large enough to reflect light but to small to settle out ______

A

Colloid

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21
Q

Contains particles uniformly spread though-too small to reflect lighter settle out

A

Solution

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22
Q

Anything that occupies space and has mass is _____

A

Matter

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23
Q

The smallest particle possessing the properties of an element

A

Atom

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24
Q

Is matter that is made up of only one kind of atom

A

Element

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25
Q

Is substance composed of atoms of two or more elements linked together chemically in fixed proportions

A

Molecule

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26
Q

In a chemical equation the starting substances are called?

A

Reactants

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27
Q

And the substances that form are called?

A

Products

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28
Q

Like charges ?

A

Repeal

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29
Q

Unlike charges

A

Attract

30
Q

Are positively charged

A

Protons

31
Q

Negatively charged

A

Electrons

32
Q

Have no charge

A

Neutrons

33
Q

Located in the nucleus

A

Protons neutrons

34
Q

Located in the outer shell

A

Electrons

35
Q

Heterogenous mixtures _____ have uniform composition

A

Do not

36
Q

Homogenous mixtures ____ have uniform composition

A

Do

37
Q

Substance that will not noticeable dissolve in water

A

Insoluble

38
Q

Contains more solute that could usually be dissolved at that temperature

A

Supersaturated

39
Q

Contains less dissolved solute than the amount that the solvent can normally hold at the temperature

A

Unsaturated

40
Q

Contains the maximum amount of the solute that will normally dissolved at that temperature

A

Saturated

41
Q

In a solution the ____ is the dissolving agent and the ___ is the substance that gets dissolved

A

Solvent (water)

Solute (sugar)

42
Q

As temperature increases gas solubility does what?

A

Decrease

43
Q

As temperature increases solid solubility does what

A

Increase

44
Q

Water molecules are what?

A

Polar

45
Q

Polar

A

Means that they have an uneven distrubution of electrical charge

46
Q

One end of the POLAR molecule has ___ chat he and the other side has a ___ charge

A

Positive

Negative

47
Q

Name 2 metal ions that are of concern for health

A

Lead

Mercury

48
Q

What is lead used in

A

Soft metals,paint,water tubes

49
Q

Mercury

A

Metals that is liquid at room temperature,can be absorbed through the skin

50
Q

ph values greater than 7.0 have OH- ion

A

Basic

51
Q

Ph value less than 7.0 have a H+ ion

A

Acidic

52
Q

Ph value is 7.0

A

Neutral

53
Q

Ionic compounds are composed of what

A

Metal and nonmetal

54
Q

As pressure on gas ___ gas solubility increases

A

Increases

55
Q

Molecule are composed of two or more __

A

Elements

56
Q

They are formed from __ of electrons

A

Sharing

57
Q

Hard water ions ____ the cleaning action of soap

A

Interfere with

58
Q

In water softener, the resin helps to soften water by exchanging the hard water ions for _____ ions

A

Sodium

59
Q

Name three Types of water ions

A

Calcium
Iron
Magnesium

60
Q

5 indicators of chemical reaction

A 
Formation of precipice 
Evolution of a gas 
Change in temperature 
Change in color 
Production of light
Formation of oxide
61
Q

Boiling

A

Physical

62
Q

Melting

A

Physical

63
Q

Production of light

A

Chemical

64
Q

Evaporating

A

Physical

65
Q

Formation of precipitate

A

Chemical

66
Q

Horizontal row of the periodic table are

A

Period/series

67
Q

A vertical column of the perotic table are

A

Groups/family’s

68
Q

Events with similar properties are in the same

A

Family

69
Q

Noble gases family contains elements that are

A

Balanced

70
Q

How an atom interacts with other atoms is governed largely by the number and arrangement of the atoms

A

Electrons

71
Q

The worlds supply of water has ____ for billions of years

A

Stayed the same

Chemistry (10 decks)

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