Quiz about Checkpoint 8 Mixtures

Question 1

A mixtures is a combination of two or more____________ in which no new kinds of matter are formed.

Accepted Answer

subtances

Answer

parts

Answer

leaves

Answer

pebbles

Question 2

Making a mixture results in ___________________ only.

Accepted Answer

physical changes

Answer

chemical reactions

Answer

separate parts

Answer

two subtances

Question 3

Sand and clay is an example of a mixture of solids.

Accepted Answer

True

Answer

False

Question 4

The air around was is  a mixture of gases.

Accepted Answer

True

Answer

False

Question 5

A solution is a mixture of one or more substances _________ evenly into another substance.

Accepted Answer

dissolved

Answer

evaporated

Answer

carried

Answer

split

Question 6

Water can dissolve many things so it is called the .....

Accepted Answer

universal solvent

Answer

wonderful water

Answer

cohesion

Answer

liquid

Question 7

What will allow more solute to be dissolved in a solvent.

Accepted Answer

heat

Answer

adding more solute

Answer

stiring

Answer

cooling solution

Question 8

Define solubility

Accepted Answer

how much solute can dissolve in a solvent

Answer

how much pressure is in an object has

Answer

Surface Area per Temperature

Answer

it is a made up word

Question 9

Lemonade - Water, lemon juice, and sugar
Identify the solute

Accepted Answer

sugar and lemon juice

Answer

water

Answer

lemon juice

Question 10

The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as

Accepted Answer

evaporation

Answer

decanting

Answer

loading

Answer

chromatography

Question 11

When no more sugar will dissolve in a glass of water, the solution is

Accepted Answer

saturated

Answer

unsaturated

Answer

supersaturated

Answer

suspended

Question 12

Which is the best set of tools to use for separating a mixture of water, sugar, and pebbles?

Accepted Answer

a filter and a hot plate

Answer

a filter and a magnet

Answer

a magnet and a hot plate

Answer

a settling tank and a filter

Question 13

A pure substance made up of only one type of atom e.g. oxygen or carbon

Accepted Answer

element

Answer

emulsion

Answer

pure substance

Answer

compound

Question 14

A substance that is made up of two or more different types of atoms bonded together e.g. water

Accepted Answer

compound

Answer

solvent

Answer

element

Answer

solution

Question 15

Something that dissolves very easily in water

Accepted Answer

soluble

Answer

solid

Answer

saturated

Answer

solvent

Question 16

when you have something that does not dissolve it is referred to as being

Accepted Answer

insoluble

Answer

a rock

Answer

a solid

Answer

a nail

Question 17

Describing a solution that can dissolve no more of a solute at a given temperature

Accepted Answer

saturated

Answer

concentrated

Answer

overloaded

Answer

super-concentrated

Question 18

Name the process used to separate brewed coffee from the ground beans.

Accepted Answer

filtration

Answer

distillation

Answer

solution

Answer

boiling

Question 19

Salt is dissolved in water. How can you separate the salt from water?

Accepted Answer

boil the water and let it evaporate

Answer

add more salt

Answer

filter the water

Answer

dispose the water

Question 20

Examples are diamonds (C) and Uranium (U)

Accepted Answer

elements

Answer

mixtures

Answer

compounds

Question 21

Is sugar (C₁₂H₂₂O₁₁)an element or a compound?

Accepted Answer

Compound

Answer

Element

Question 22

What is H₂SO₄
made up of?

Accepted Answer

2 hydrogen, 1 sulfur, 4 oxygen

Answer

1 hydrogen, 2 sulfur, 4 oxygen

Answer

2 hydrogen & 4 sodium

Answer

1 hydrogen & 6 sodium

Question 23

Classify the picture with the correct label.

Accepted Answer

Compound

Answer

Element

Answer

Mixture of Elements

Answer

Mixture of Compounds

Question 24

Classify the picture with the correct label.

Accepted Answer

Mixture of Elements

Answer

Element

Answer

Compound

Answer

Mixture of Elements and Compounds

Question 25

Classify the picture with the correct label.

Accepted Answer

Mixture of Elements & Compounds

Answer

Element

Answer

Compound

Answer

Mixture of Compounds

Question 26

Classify the picture with the correct label.

Accepted Answer

Mixture of Compounds

Answer

Compounds

Answer

Mixture of Elements

Answer

Mixture of Elements & Compounds

Question 27

Classify the picture with the correct label.

Accepted Answer

Compound

Answer

Element

Answer

Mixture of Compounds

Answer

Mixture of Elements

Question 28

What does this illustrate

Accepted Answer

Mixture of Elements and Compunds

Answer

Elements

Answer

Compunds

Answer

Mixture of Compounds

Question 29

What does this pic illustrate?

Accepted Answer

Compounds

Answer

Element

Answer

Mixture of Compunds

Answer

Mixture of elemets

Question 30

What is considered the simplest form of matter?

Accepted Answer

Elements

Answer

Compounds

Answer

Colloids

Answer

Solutions

Question 31

Which of the following is an example of of a container filled with a pure substance rather than with a mixture?

Accepted Answer

A balloon filled with helium.

Answer

A tire filled with air.

Answer

A jar filled with salt water.

Answer

A glass filled with chocolate milk.

Question 32

The chemical equation shown below represents a reaction that produces fuel for certain cars.

CO + H₂O------->CO₂+ H₂

_{Which substance in this equation is classified as an element?}

Accepted Answer

H2

Answer

CO

Answer

O2

Answer

CO2

Question 33

Which changes MUST happen for elements to become a compound?

Accepted Answer

chemical bonds form between atoms.

Answer

elements are heated

Answer

a gas becomes a liquid

Answer

elements dissolve in water

Question 34

Water (H₂O), is not found on the periodic table because water is a...

Accepted Answer

compound

Answer

atom

Answer

liquid

Answer

mixture

Question 35

This picture is a model of...

Accepted Answer

an element

Answer

a compound

Answer

a homogenious mixture

Answer

a heterogeneous mixture.

Question 36

Name the separation technique shown in the diagram.

Accepted Answer

evaporation

Answer

distillation

Answer

filtration

Question 37

Which one of the following would you use to separate sand from iron filings?

Accepted Answer

a bar magnet

Answer

filter paper

Answer

chromatography paper

Answer

alum

Question 38

To separate a mixture of soil and water what separation method is used?

Accepted Answer

Filtration

Answer

Distillation

Answer

Chromatography

Answer

Evaporation

Question 39

This method is utilized in industries like junkyards to remove metal scraps from other materials.

Accepted Answer

use of magnet

Answer

chromatography

Answer

physical manipulation

Answer

distillation

Question 40

What mixture could you use this tool to best separate that mixture?

Accepted Answer

Sand and rocks

Answer

Sugar and Salt

Answer

Apples and grapes

Question 41

Distillation uses two changes of state. what are they?

Accepted Answer

Evaporation and condensation

Answer

Evaporation and freezing

Answer

melting and boiling

Answer

sublimation and condensation

Question 42

Is Gatorade powder dissolving in water physical or chemical change?

Accepted Answer

Physical

Answer

Chemical

Question 43

When you mix dirt and water...

Accepted Answer

Water is the solvent & Dirt is the solute

Answer

Water is the solute & Dirt is the solvent

Question 44

Ink can be separated by a method of -----------------------------------------------

Accepted Answer

chromatography

Answer

distillation

Answer

filtration

Answer

sedimentation

Question 45

A substance is soluble if it can be dissolved.

In paper chromatography, the most soluble solute _____________________ .

Accepted Answer

travels furthest away from the start point

Answer

does not move from the start point

Answer

stays closest to the start point

Answer

can be found in the middle of the chromatogram

Question 46

Which plant species has plant pigments most similar to those in A?

Accepted Answer

C

Answer

B

Answer

D

Question 47

Milk is opaque. This means it is

Accepted Answer

Not a solution

Answer

A solution

Question 48

Khalid and Sara want to find out how much copper sulphate will dissolve in different temperatures of water. In this investigation the independent variable is the:

Accepted Answer

The temperature of the water

Answer

Copper sulphate

Answer

The volume of the water

Answer

The number of spatulas used

Question 49

Khalid and Sara want to find out how much copper sulphate will dissolve in different temperatures of water. In this investigation the mass of copper sulphate that dissolves is the:

Accepted Answer

Dependent variable

Answer

Controlled variable

Answer

Independent variable

Question 50

Khalid and Sara want to find out how much copper sulphate will dissolve in different temperatures of water. In this investigation the volume of water is the:

Accepted Answer

Controlled variable

Answer

Independent variable

Answer

Dependent variable

Answer

None of the above

Checkpoint 8 Mixtures

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