Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Flashcardlet > Phy Sci chapter eight > Flashcards

Phy Sci chapter eight Flashcards

0
Q

What determined whether a mixture is a suspension or a colloid

A

The size of the particles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

An oatmeal raisin cookie is an example of a what

A

Heterogenous mixture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Chlorine, which is used in swimming pools to kill bacteria, is a what

A

Solute

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q 
Which of the following is a solution 
A. Air 
B. Wood
C. Snow 
D. Orange juice
A

Air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Pennies minted after 1984 contain 97.5% zinc and 2.5% copper
These coins are examples of what

A

Alloys

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Two liquids that form a heterogenous mixture are said to be

A

Immiscible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is a method for separating a solution of miscible liquids

A

Distilling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q 
Which of the following is an example of a homogenous mixture 
A. Fog 
B. Gasoline 
C. Paint 
D. Grapefruit juice
A

Gasoline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Particles in a what can be separated by filtration

A

Suspension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The Tyndall effect in observed in

A

Colloids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a heterogenous mixture

A

It doesn’t have a fixed composition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What do particles in a suspension do

What size are they

A

Settle out

Large

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas

A

Suspension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What may particles in a suspension do

A

Settle over time

Be filtered out

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Liquids that do not mix with each other

A

Immiscible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Process of luring a less dense liquid off a denser liquid

A

Decanting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is declaring used for

A

To separate two immiscible liquids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the size of particles in a colloid

What does this mean

A

Too small

They can’t settle out

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

A mixture consisting of tiny particles that are intermediate in size between those in solutions and those in suspensions and that are suspended in a liquid, solid, or gas

A

Colloid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are particles in a colloid large enough for

A

To scatter light that passes through

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What does the Tyndall Effect state

A

That particles in a colloid are large enough to scatter light that passes through

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What can some immiscible liquids form

A

Colloids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Any mixture of two or more immiscible liquids in which one liquid is dispersed in the other

A

Emulsion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is a homogenous mixture

A

It looks uniform even when you examine it under a microscope because the individual complements of the mixture are too small to be seen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is special about the ions in salt water

A

The number of ions is the same everywhere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Are homogenous mixtures solutions

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

A homogenous throughout which two or more substances are uniformly dispersed

A

Solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

In a solution, the substance that dissolves in the solvent

A

Solute

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

In a solution, the substance in which the solute dissolves

A

Solvent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What is not a homogenous mixture

A

Milk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What do miscible liquids mix to from

A

Solutions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Liquids that form a single layer when mixed

A

Miscible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

A method used to separate miscible liquids that have different boiling points

A

Distillation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What do liquid solutions sometimes contain none of

A

Water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

A liquid solution of gasoline, diesel fuel, and kerosene

35
Q

Other states of matter can also form what

36
Q

What is the air a solution of

A

Nitrogen
Oxygen
Argon
Other gases

37
Q

A solution of mercury dissolved in silver

38
Q

The substance that there is the most amount of

39
Q

The substance that there is the least amount of

40
Q

Solids can dissolve in what

A

Other solids

41
Q

A solid or liquid mixture of two or more metals

42
Q

Why is water called the universal solvent

A

Because many substances can dissolve in water

43
Q

Water can dissolve what

A

Ionic compounds

44
Q

What is water

A

A polar compound

45
Q

Describes a molecule in which the positive and negative charges are separated

46
Q

What do water molecules attract

A

Both positive ions and negative ions

47
Q

What do polar water molecules pull apart

A

Ionic crystals

48
Q

The partially negative oxygen atoms of water molecules attract what

A

The positively charged sodium ions

49
Q

What does dissolving depend on

A

The forces between particles

50
Q

What must be forces between the solvent molecules and the particles of the substance be grape after than

A

The force between the particles in the crystal

51
Q

What kind of compound does water dissolve many of

A

Covalent (molecular)

52
Q

Water forms hydrogen bonds with what

A

Molecular compounds such as sugar

53
Q

The intermolecular force occurring when a hydrogen atom that is bonded to a highly electronegative atom of one molecule is attracted to two unshared electrons of another molecule

A

Hydrogen bond

54
Q

What does “like dissolves like” mean

A

A solvent will dissolve substances that have molecular structures that are like the solvent’s structure

55
Q

What will usually not dissolve in water

A

Nonpolar compounds

56
Q

Describes a molecule in which the centers of positive and negative charge are not separated

57
Q

Nonpolar solvents are used to dissolve what

A

Nonpolar materials

58
Q

Why do substances dissolve

A

The energy transferred from the solvent to the solute, as well as the attractive forces between the solvent and solute molecules, causes molecules at the surface of the crystal to dissolve

59
Q

What kind of solutes dissolve faster

A

Solutes with a large surface area

60
Q

What helps the solute dissolve faster

A

Stirring of shaking a solution

61
Q

What particles diffuse throughout the solution faster

A

Dissolved solute particles

62
Q

More what particles can dissolve

63
Q

When do solutes dissolve faster

A

When the solvent is hot

64
Q

What affects the physical properties of a solution

65
Q

What increases the boiling point of a solution

66
Q

What lowers the freezing point of a solution

67
Q

What is solubility

A

The maximum mass of a solute that can dissolve in 100g of a solvent at a certain temperature and standard atmospheric pressure

68
Q

The ability of a substance to dissolve in another at a given temperature and pressure

A

Solubility

69
Q

Different substances have different what

A

Solubilities

70
Q

How much of a substance is in a solution

A

To express how much of a substance can dissolve in a solvent, you need to use the concentration

71
Q

The amount of a particular substance in a given volume of a mixture, solution, or ore

A

Concentration

72
Q

What kind of solution has a large amount of solute

A

Concentrated

73
Q

What kind of solution has only a small amount of solute

74
Q

What happens when you add more solute to a saturated solution

A

In a saturated solution, the dissolved solute is in equilibrium with undissolved solute
If you add more solute, it just settles to the bottom of the container

75
Q

A solution that cannot dissolve any more solute under the given conditions

A

Saturated solution

76
Q

Unsaturated solutions can become what

77
Q

A solution that contains less solute than a standard solution does and that is able to dissolve additional solute

A

Unsaturated solution

78
Q

Doing what to a saturated solution can dissolve more solid

79
Q

The solubility of most solutes increases with what

A

Temperature

80
Q

A solution that holds more dissolved solute than is required to reach equilibrium at a given temperature

A

Supersaturated solution

81
Q

How do you make a supersaturated solution

A

You raise the temperature of a solution, dissolve more solute, then let the solution cool again

82
Q

What affects the solubility of gases

A

Temperature and pressure

83
Q

Gaseous solutes are what in warmer water

A

Less soluble

84
Q

Gases are more soluble under what

A

High pressure

85
Q

How do you describe how much of a solute is in a solution

A

One of the most common ways of expressing the concentration of a solution is molarity

86
Q

A concentration unit of a solution expressed in moles of solute dissolved per liter of solution

Flashcardlet (81 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions