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Subtopic 5.2

Total questions: 40

Worksheet time: 40mins

Name
Class
Date
1.

Water is a universal solvent because it...

a)

can be found anywhere

b)

freezes when it gets cold

c)

floats when frozen

d)

dissolves most substances

2.

The concentration of a mixture can be increased in which of the following ways..

a)

Heating the mixture

b)

Adding more water “solvent”

c)

Adding more powder “solute”

d)

Stirring the mixture

3.

What is a solvent?

a)

The substance that does the dissolving in a solution.

b)

The substance that is being dissolved in a solution.

c)

The mixing of different substances.

d)

The process in which neutral molecules lose or gain electrons

4.

What is a substance that is dissolved in another substance?

a)

solution

b)

solute

c)

solvent

d)

solvent

5.

In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?

a)

stir the powder in the liquid

b)

freeze the mixture

c)

add more powder to the liquid

d)

store the mixture in a dark place

6.

A solution that is considered dilute would be....

a)

Dark in color

b)

Have a strong scent

c)

Have a large amount of solute

d)

Have a small amount of solute

7.

what a solute dissolves in

a)

solvent

b)

solute

c)

mixture

8.

When a certain amount of solvent cannot hold any more solute it is called a ________ solution.

a)

Diluted

b)

Saturated

c)

watery

d)

weak

9.

When Koolaid mix is light colored and tastes watery it is a _______ solution.

a)

saturated

b)

diluted

c)

super saturated

10.

When a Koolaid mix in water is dark in color and very sweet it is a __________ solution.

a)

concentrated

b)

diluted

11.

Lemonade - Water, lemon juice, and sugar

Identify the solute

a)

water

b)

lemon juice

c)

sugar and lemon juice

12.

How could you change a saturated solution to an unsaturated solution?

a)

Add solute

b)

Add solvent

13.

Identify a method to decrease the dissolving rate of a solution:

a)

decrease the temperature

b)

stir the solution

c)

increase the temperature

14.

Which would NOT increase the rate at which a sugar cube dissolves?

a)

Reducing the amount of solvent

b)

Crushing the sugar cube

c)

Stirring the solution

d)

Heating the solvent

15.

A solution that is able to dissolve additional solute is best described as

a)

supersaturated.

b)

concentrated.

c)

saturated

d)

unsaturated.

16.

Three 10 g samples of sugar are represented below.


Sample A dissolves in water more slowly than sample B.

Sample B dissolves more slowly than sample C.

Which of the following best explains why sample A dissolves more slowly than the other two?

a)

It has the most volume.

b)

It has the smallest surface area.

c)

It has the largest number of sugar molecules.

d)

It has the fewest bonds between sugar molecules.

17.

Milk is a

a)

solution

b)

suspension

c)

colloid

18.

A saturated solution is______

a)

No more solute can be dissolved

b)

More solute can be dissolved

c)

The solvent and solution

19.

A colloid is a mixture that contains undissolved particles.

a)

True

b)

False

20.

Sugar water let's light pass through, and is a homogeneous mixture

a)

solution

b)

suspension

c)

colloid

21.

Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?

a)

A solution

b)

A colloid

c)

A suspension

d)

A compound

22.

Particles are spread throughout a fluid but are too large to stay mixed w/o being stirred or shaken.

a)

suspension

b)

colloid

c)

solution

23.

Which of the following has the largest particles?

a)

Solution

b)

Suspension

c)

Colloid

24.

Which of the following appear to be clear (are not cloudy)?

a)

Solution

b)

Suspension

c)

Colloid

25.

Which of the following would leave particles on filter paper?

a)

Solution

b)

Suspension

c)

Colloid

26.

A type of mixture where the particles are larger than those in a solution but not heavy enough to settle out.

a)

Colloid

b)

Suspension

c)

Compound

27.

A measure of how much solute can be dissolved into a liter of solvent

a)

Solubility

b)

Dilution

c)

Concentration

d)

Pure Solution

28.

A snow globe would be an example of a

a)

suspension

b)

colloid

c)

solution

29.

Tea and air are examples of ________________.

a)

suspensions

b)

colloids

c)

solutions

30.

Higher turbidity = ?

(select all that is correct)

a)

More total suspended solids

b)

Less/no total suspended solids

c)

Murky/cloudy

d)

Clear/colourless

31.

The following data is given in an experiment. Which of the following would you expect copper(II) sulfate crystals to take a shorter time to dissolve if all of them are stirred at the same rate?

a)

A

b)

B

c)

C

d)

D

32.

The rate of dissolving of a solute refers to

a)

how much a solute dissolves in a fixed volume of solvent

b)

how much a solute dissolves in any volume of solvent

c)

how fast a solute dissolves in a fixed volume of solvent

d)

how fast a solute dissolves in any volume of solvent

33.

Which of the following word equations is correct?

a)

Solute + Solution = Solvent

b)

Solute + Solvent = Solution

c)

Solute + Solute = Solution

d)

Solvent + Solution = Solute

34.

A teaspoonful of sugar is added to a cup of cold water and stirred until all the sugar crystals have dissolved. More sugar is then added until the sugar crystals remained at the bottom of the cup. The resulting sugar solution is said to be ___________________.

a)

insoluble

b)

saturated

c)

soluble

d)

unsaturated

35.

Which of these is a colloid?

a)

paint

b)

air

c)

salt water

d)

gasoline

36.

Which will dissolve the slowest

a)

powdered sugar in hot water

b)

Powdered sugar in cold water

c)

sugar cubes in hot water

d)

sugar cubes in cold water

37.

Water is known as the universal __________

a)

solute

b)

solution

c)

solvent

d)

bonder

38.

Organic solvents which are carbon-based can be used to dissolve solutes that are insoluble in (a)  

39.

Water can dissolve ALL kind of solute.

a)

True

b)

False

40.

Alcohol, kerosene, acetone, turpentine and ether are the examples of (a)   .