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Science-7 > Test 2 > Flashcards

Test 2 Flashcards

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1
Q

DEFINITIONS:

Pure Substance:

A

A substance that has identical particles l

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2
Q

DEFINITIONS

Mixture:

A

a substance made by mixing other substances.

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3
Q

DEFINITIONS

Dissolve

A

the process of a substance being fully mixed

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4
Q

DEFINITIONS

Heterogeneous Mixture

A

Heterogeneous mixture are made up of 2 or more substances that are very distinguishable

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5
Q

DEFINITIONS

Homogeneous Mixture

A

Mixtures are made up of 2 or more that have not been chemically combined

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6
Q

DEFINITIONS

Solution:

A

A solution is a homogeneous mixture made up of 2 or more substances

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7
Q

DEFINITIONS

Solute:

A

A Solute dissolves into a solvent and makes up a smaller portion of a solution

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8
Q

DEFINITIONS

Solubility:

A

The ability of a solute to dissolve in a solvent called solubility

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9
Q

DEFINITIONS

Dilute Solution

A

A diluted Solution is one where the dissolved solute is small

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10
Q

DEFINITIONS

Concentrated Solution

A

A concentrated solution contains a lot of dissolved solute

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11
Q

Facts about

Pure Substance

A

Two types of elements and compounds

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12
Q

Facts about

Mixture

A

Two types of homogenous compounds

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13
Q

Facts about

Dissolve

A

used to create a homogeneous mixture

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14
Q

Facts about

Homogeneous Mixture

A

Can be separated through physical methods

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15
Q

Facts about

Heterogeneous Mixture

A

Components are much larger thanhomogenous mixtures making it easier to separate

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16
Q

Facts about

Solution

A

They exist in every form

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17
Q

Facts about

Solute

A

There can be more than one solute in a solution

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18
Q

Facts about

Solvent:

A

There can only be one

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19
Q

Facst about

Solubility:

A

Has specific polarity

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20
Q

Facts about

Dilute Solution:

A

You can just add water to dilute the solution

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21
Q

facts about

Concentrated Solution:

A

You just add more solute to make it Concentrated

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22
Q

exaple

Pure Substance

A

gold

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23
Q

exaple

Mixture

A

Corn starch and water

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24
Q

exaple

disslove

A

suger water

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25
Q

exaple

Homogeneous Mixture

A

Coffee

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26
Q

exaple

Heterogeneous Mixture

A

Chicken soup

27
Q

exaple

Solution:

A

Dental implants

28
Q

Solute:

A

salt

29
Q

Solvent:

A

water

30
Q

exaple

Solubility:

A

Suger and water

31
Q

Dilute Solution

A

Water downed lemonade

32
Q

exaple

Concentrated Solution

A

Saltwater with little water

33
Q

What are the two types of mixtures?

A

Homogeneous and heterogeneous mixtures

34
Q

How can you separate mixtures?

A

Through physical methods

35
Q

What is another name for a homogeneous mixture?

A

Solution

36
Q

What are pure substances divided into?

A

Elements and compounds

37
Q

What is the purpose of dissolving?

A

To mix 2 items fully

38
Q

List the five postulates of the Particle Theory:

A

All matter is made up of particles
All particles are in constant motion
All particles of one substance are identical
Temperature affects the speed at which particles move
There are spaces between particles

39
Q

What makes up the largest part of a solution?

A

The Solvent

40
Q

What makes up the smallest part of a solution?

A

The solute

41
Q

A solute can be any _______, ________, or __________

A

Solid liquid and gas

42
Q

What two things can a solution be?

A

Soluble and insoluble

43
Q

What does it mean to have an insoluble solution?

A

Not soluble

44
Q

Why is water known as the universal solvent?

A

Water is known as the universal solvent because it dissolves more than any other substance

45
Q

List two GAS solutions labeling the solute and solvent:

A

Air we breath
Solute: Oxygen
Solvent: Nitrogen
Propane
Solute: Hydrogen
Solvent: Carbon

46
Q

List two SOLID solutions labeling the solute and solvent:

A

Bronze
Solute: Tin
Solvent: Copper
Brass
Solute: Zinc
Solvent: Iron

47
Q

List two LIQUID solutions labeling the solute and solvent:

A

Lemon water
Solute: Lemon
Solvent: Water
Vinegar
Solute: Acetic acid
Solvent: Water

48
Q

List two MIXED solutions labeling the solute and solvent:

A

Muddy water
Solute: Mud
Solvent: Water
Sea water
Solute: Salt
Solvent: Water

49
Q

T/F: There can be more than one solute in a solution

A

True

50
Q

T/F: There can be more than one solvent in a solution

A

False

51
Q

T/F: Water is the universal solvent

A

True

52
Q

T/F: A solvent dissolves into a solute

A

Flase

53
Q

T/F: A solvent dissolves the other components in a solution

A

True

54
Q

What is a diluted solution?

A

A diluted solution is one where the dissolved solute is small

55
Q

What is an exaple diluted solution?

A

Water down orange juice

56
Q

What is a concentrated solution?

A

A Concentrated solution is when there is a ton of dissolved solute in the solution

57
Q

What is an exaple concentrated solution?

A

A small amount of water in orange juice

58
Q

What is an unsaturated solution?

A

An unsaturated solution is where the amount of solute is less than can be dissolved

59
Q

What is an exaple unsaturated solution?

A

salt dissolved in water

60
Q

What is a saturated solution?

A

A saturated solution is when the solvent is no longer dissolved the solute

61
Q

What is an exaple of saturated solution

A

A soda

62
Q

What is a supersaturated solution?

A

A super-saturated solution has more solute than would typically dissolve in a standard solution

63
Q

What is a exaple of super saturated solutuon

A

Example:
Carbonate water

Science-7 (5 decks)

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