Quiz about Unit 2: Matter and Solutions STUDY GUIDE

Question 1

A mixture in which particles can be seen and easily separated by settling or filtration

Accepted Answer

suspension

Answer

heterogeneous mixture

Answer

colloid

Answer

homogeneous mixture

Question 2

A mixture in which different materials can be distinguished easily

Accepted Answer

heterogeneous mixture

Answer

suspension

Answer

homogeneous mixture

Answer

colloid

Question 3

A mixture containing small, undissolved particles that do not settle out.

Accepted Answer

colloid

Answer

heterogeneous mixture

Answer

homogeneous mixture

Answer

suspension

Question 4

A mixture in which substances are evenly distributed throughout the mixture

Accepted Answer

homogeneous mixture

Answer

colloid

Answer

heterogeneous mixture

Answer

suspension

Question 5

the substance that is dissolved

Accepted Answer

solute

Answer

solution

Answer

solvent

Question 6

the substance in which the solute dissolves

Accepted Answer

solvent

Answer

solute

Answer

solution

Question 7

A mixture that forms when one substance dissolves another.

Accepted Answer

solution

Answer

solute

Answer

solvent

Question 8

mixtures of two or more metals

Accepted Answer

alloy

Answer

homogeneous mixture

Answer

heterogeneous mixture

Answer

solution

Question 9

Auqeous Solution

Accepted Answer

solutions with water as the solvent

Answer

solutions with oil as the solvent

Answer

solutions with acid as the solvent

Question 10

Definition of a phase diagram: a graph of pressure versus temperature that shows which phase a substance exists in under different conditions of temperature and pressure

Accepted Answer

true

Answer

false

Question 11

What is the triple point on a phase diagram?

Accepted Answer

all 3 phases can coexist simultaneously

Answer

represents the temperature and pressure above which a supercritical fluid exists

Answer

a change from one state (solid or liquid or gas) to another without a change in chemical composition

Question 12

What is the critical point on a phase diagram?

Accepted Answer

represents the temperature and pressure above which a supercritical fluid exists

Answer

all 3 phases can coexist simultaneously

Answer

a change from one state (solid or liquid or gas) to another without a change in chemical composition

Question 13

What is deposition?

Accepted Answer

gas to solid

Answer

solid to gas

Answer

gas to liquid

Answer

liquid to gas

Answer

solid to liquid

Question 14

What is condensation?

Accepted Answer

gas to liquid

Answer

gas to solid

Answer

solid to gas

Answer

liquid to gas

Answer

solid to liquid

Question 15

What is sublimation?

Accepted Answer

solid to gas

Answer

gas to solid

Answer

gas to liquid

Answer

liquid to gas

Answer

solid to liquid

Question 16

What is vaporization?

Accepted Answer

liquid to gas

Answer

gas to solid

Answer

solid to gas

Answer

gas to liquid

Answer

solid to liquid

Question 17

What is freezing?

Accepted Answer

liquid to solid

Answer

gas to solid

Answer

solid to gas

Answer

gas to liquid

Answer

liquid to gas

Question 18

What is melting?

Accepted Answer

solid to liquid

Answer

gas to solid

Answer

solid to gas

Answer

gas to liquid

Answer

liquid to gas

Question 19

A form of matter that has a definite shape and volume

Accepted Answer

solid

Answer

liquid

Answer

gas

Question 20

A state of matter that has no definite shape but has a definite volume.

Accepted Answer

liquid

Answer

gas

Answer

solid

Question 21

a form of matter that does not have a definite volume or shape

Accepted Answer

gas

Answer

liquid

Answer

solid

Question 22

a change from one state (solid or liquid or gas) to another without a change in chemical composition

Accepted Answer

phase change

Answer

chemical change

Answer

physical change

Question 23

A change in a substance that does not involve a change in the identity of the substance

Accepted Answer

physical change

Answer

chemical change

Answer

phase change

Question 24

A change in matter that produces one or more new substances

Accepted Answer

chemical change

Answer

physical change

Answer

phase change

Question 25

Equation for Density

Accepted Answer

Density=mass/volume

Answer

Density=volume/mass

Answer

Density=mass x volume

Question 26

A substance that decreases the hydrogen ion concentration in a solution.

Accepted Answer

Base

Answer

Acid

Answer

Neutralization

Question 27

A reaction of an acid with a base, yielding a solution that is not as acidic or basic as the starting solutions were

Accepted Answer

Neutralization

Answer

Acid

Answer

Base

Question 28

A substance that increases the hydrogen ion concentration of a solution; Forms H+ ions

Accepted Answer

Acid

Answer

Base

Answer

Neutralization

Question 29

Definition of Electrolyte:  An ionic compound whose aqueous solution conducts an electric current

Accepted Answer

True

Answer

False

Question 30

Label the missing pieces of the chart. Select all that apply.

Accepted Answer

A)Pure Substances

Accepted Answer

B) Elements

Accepted Answer

C) Heterogeneous

Answer

A) Elements

Answer

A) Heterogeneous

Question 31

What are the properties of solutions?

Accepted Answer

Do not separate on standing

Accepted Answer

Do not scatter light

Answer

Can be separated by filtration

Answer

None of the above

Question 32

What factors affect the rate of dissolution?

Accepted Answer

All the above

Answer

Surface area of the solute is increased by grindings

Answer

Stirring or shaking

Answer

Higher temperature

Question 33

Most substances on this graph show increased solubility as temperature increases. Which ones do NOT increase solubility as temperature increases?

Accepted Answer

NH3

Accepted Answer

SO2

Accepted Answer

HCl

Answer

KCl

Answer

NaNO3

Question 34

What compound is least soluble in water at 12 degrees celsius?

Accepted Answer

KClO3

Answer

NaCl

Answer

KCl

Answer

HCl

Question 35

How much solute is needed to make a saturated solution of NH3 at 10 degrees celsius?

Accepted Answer

68g NH3

Accepted Answer

70g NH3

Answer

65g NH3

Question 36

On the pH scale, what is the range for acid?

Accepted Answer

0-6

Answer

7

Answer

7-14

Question 37

On the pH scale, what is the range for base?

Accepted Answer

7-14

Answer

0-6

Answer

7

Question 38

On the pH scale, what is the range for neutral?

Accepted Answer

7

Answer

0-6

Answer

7-14

Question 39

Select the choices that are properties of acids?

Accepted Answer

Tastes Sour

Accepted Answer

Corrosive to metals

Accepted Answer

react with metals

Answer

Tastes Bitter

Answer

turn litmus paper blue

Question 40

Select the choices that are properties of bases?

Accepted Answer

Tastes Bitter

Accepted Answer

Slippery Feelings

Accepted Answer

conducts electricity

Answer

Tastes Sour

Answer

turns litmus paper red

Question 41

A pH meter measures the pH value of a substance

Accepted Answer

True

Answer

False

Question 42

The amount of hydronium (H+) ions and hydroxide (OH-) ions in solution can be detected by various chemicals or an electronic device, called a pH meter.

Accepted Answer

True

Answer

False

Question 43

Litmus paper will also give an exact value of pH.

Accepted Answer

False

Answer

True

Question 44

LIQUID PH INDICATORS GIVE EXACT PH VALUES.

Accepted Answer

False

Answer

True

Question 45

BASES PRODUCE HYDROXIDE IONS IN AQUEOUS SOLUTIONS

Accepted Answer

True

Answer

False

Question 46

PH STANDS FOR THE POWER OF HYRDROGEN.

Accepted Answer

True

Answer

False

Question 47

AMMONIA (PH 10)IS A STRONGER BASE THAN ANTACID (PH 8).

Accepted Answer

True

Answer

False

Question 48

ACIDS DISSOCIATE IN WATER TO FORM H3O- IONS.

Accepted Answer

True

Answer

False

Question 49

Select an option for 1 extra credit point.

Accepted Answer

Yes I want an extra credit point

Answer

No I do not want an extra credit point

Question 50

This type of mixture contains two or more substances that are visibly distinguishable.

Accepted Answer

heterogeneous

Answer

homogeneous

Answer

solution

Answer

colloid

Question 51

The image shown is an example of a ___________.

Accepted Answer

solution

Answer

mixture

Answer

gas

Answer

plasma

Question 52

The substance in a solution that is of the greatest amount is the __________.

Accepted Answer

solvent

Answer

content

Answer

solute

Answer

salt

Question 53

When making a solution the solid that is dissolved is called the ___________ and the liquid doing the dissolving is called the __________.

Accepted Answer

solute, solvent

Answer

solvent, solute

Answer

acid, base

Answer

hydrogen, oxygen

Question 54

Sugar is added to water and the mixture is stirred. Which observation is evidence that the sugar dissolved in the water?

Accepted Answer

Less sugar is visible.

Answer

The water is cloudy.

Answer

The sugar turned into crystals.

Answer

Bubbles formed in the water.

Question 55

If I dissolve carbon dioxide in water, what is the solvent?

Accepted Answer

Water

Answer

Carbon Dioxide

Answer

There is no solvent

Answer

Oxygen

Question 56

A homogeneous mixture is the same thing as...

Accepted Answer

a solution

Answer

a heterogeneous mixture

Answer

a compound

Answer

an element

Question 57

What are mixtures?

Accepted Answer

different materials placed together but keeping their own properties

Answer

a mixture in which substances spread out evenly and will not settle

Answer

the degree to which a material will dissolve in another substance

Answer

the substance in a solution that has the greatest amount

Answer

the substance in a solution that has the least amount

Question 58

What is a substance that is dissolved in another substance?

Accepted Answer

solute

Answer

solution

Answer

solvent

Answer

compound

Question 59

A fruit salad is a

Accepted Answer

mixture

Answer

solution

Question 60

A combination of two or more substances where each keeps their own properties and can be easily separated -

Accepted Answer

Mixture

Answer

Solution

Answer

Solute

Question 61

How can you separate a mixture of iron filings and sand?

Accepted Answer

Using a magnet to attract the iron filings.

Answer

By adding water and filtering the mixture.

Answer

By heating the mixture until the sand melts.

Answer

By adding acid to dissolve the sand.

Question 62

Erin pours a mixture of sand and salt into a glass of warm water. She stirs the sand and salt with the water for one minute. She waits a few minutes and looks at the glass. She observes the following:

Which outcome will Erin observe and how could she classify the results of this experiment?

Accepted Answer

Salt dissolves in the water, while the sand sits at the bottom of the container making the salt and water a homogeneous mixture and the sand sitting at the bottom a heterogeneous mixture.

Answer

Salt is transparent in a liquid making it an element.

Answer

Salt evaporates from the water making it a heterogeneous mixture.

Answer

Salt chemically combines with sand making this a compound.

Question 63

A student mixes oil and water in a flask. After a while, the oil and water separate into two layers. Which statement BEST explains this result?

Accepted Answer

Neither substance can act as a solvent to the other.

Answer

Only one of the substances can act as a solvent to the other.

Answer

Only one of the substances can act as a solute to the other.

Answer

Neither substance is able to form solutions.

Question 64

How can we separate an insoluble solid from a liquid?

Accepted Answer

filtration

Answer

chromatography

Answer

evaporation

Answer

condensation

Unit 2: Matter and Solutions STUDY GUIDE

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