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Y9 Chemistry revision

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Salts that are made with hydrochloric acid are called ______________.

a)

chlorides

b)

sulfates

c)

nitrates

d)

carbonates

2.

What are the products if magnesium reacts with hydrochloric acid?

a)

Magnesium chloride + Hydrogen

b)

Magnesium sulfate + Hydrogen

c)

Magnesium oxide + Hydrogen

d)

Magnesium sulfide + Hydrogen

3.

Which of the following preparation of salt is incorrect?

a)

acid + alkali

b)

acid + metal oxide

c)

acid + carbonate

d)

acid + acid

4.

Which of the following reaction can produce sodium nitrate and water?

a)

Sodium chloride solution and nitric acid.

b)

Sodium sulphate solution and nitric acid.

c)

Sodium hydroxide solution and nitric acid.

d)

Sodium and dilute nitric acid.

5.

Complete the following word equation:

Metal + Acid -->

a)

Salt + water

b)

Salt + hydrogen

c)

Salt + Water + Carbon dioxide

6.

Complete the following word equation:

Metalcarbonate + acid -->

a)

Salt + Hydrogen

b)

Salt + Water + Carbon Dioxide

c)

Salt + Water

7.

What colour does the solution turn when sulfuric acid is added to copper carbonate?

a)

Blue

b)

Green

c)

Clear

d)

Purple

8.

How do you remove the water to leave solid copper sulfate crystals?

a)

Filter

b)

Evaporate

c)

Distill

9.

What does the word insoluble mean?

a)

Does dissolve

b)

Doesn't dissolve

c)

Is part of a solid

10.

What is the test for Hydrogen gas?

a)

Squeaky pop

b)

Lime water turning cloudy

c)

Add pH paper

11.

What is the test for Carbon Dioxide?

a)

Add Litmus paper

b)

Lime water turning milky

c)

Squeaky pop

12.
Salts that are made with sulfuric acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
13.
Salts that are made with nitric acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
14.

How do you separate an excess insoluble reactant from a solution?

a)

Filtration

b)

Precipitation

c)

Crystalisation

d)

Evaporation

15.

When producing a soluble salt in a reaction between an acid and an alkali, how can you prepare dry solid crystals from the solution?

a)

Filtration

b)

Neutralisation

c)

Condensation

d)

Evaporation/crystallisation

16.

A temperature increase causes the particles to ......

a)

to slow down

b)

move faster

c)

collide higher

d)

in the right order

17.

Why does a higher concentration increase the rate of reaction?

a)

it increases the amount of reactants

b)

it lowers the activation energy

c)

it increases the energy of particle collisions

d)

it increases the frequency of particle collisions

18.

Why does a higher temperature increase the rate of a reaction?

a)

it increases both the frequency and energy of particle collisions

b)

it only increases the frequency of particle collisions

c)

it only increases the energy of particle collisions

d)

it reduces the activation energy of the reaction

19.
What is the rate of reaction?
a)
How fast a reaction is 
b)
How big a reaction is
c)
How loud a reaction is
d)
How much gas a reaction produces
20.

Breaking up a lump of potassium into smaller pieces increases the rate of reaction due to increased

a)

concentration

b)

surface area

c)

temperature

d)

reactants

21.

Which factors increase the rate of a reaction?

a)

increasing temperature

b)

increasing concentration

c)

increasing surface area

d)

All of these

22.

Increasing the temperature gives particles more __________.

a)

Time

b)

Energy

c)

Space

d)

Frequency

23.

As the frequency of ______________ increases, the rate of reaction increases.

Hint: frequency means how often

a)

Time

b)

Reactions

c)

Collisions

d)

Reactants

24.

You add more people into an enclosed space in hope for more collisions. You have increased:

a)

temperature

b)

concentration

c)

pressure

d)

catalyst

25.
Located on the left side of the reaction
a)
reactants
b)
products
26.

The word for a substance that you react at the start of a chemical reaction...

a)

Reaction

b)

Reactant

c)

Product

d)

The result

27.

The word for a substance created in a chemical reaction...

a)

Reaction

b)

Reactant

c)

Product

d)

Mass

28.

How is this equipment being used to measure the rate of reaction?

a)

The gas syringe measures how much gas is produced in a certain time

b)

The reaction mixture will increase in volume in a certain time

29.
Identify where the reaction has finished
a)
A
b)
B
c)
C
d)
D
30.
Identify the part of the graph with the fastest rate of reaction.
a)
A
b)
B
c)
C
d)
D
31.
Which of these statements about rate of reaction graphs is NOT true?
a)
the steeper the slope, the faster the rate of reaction
b)
a flat slope means there is no reaction
c)
the shallower the slope, the faster the reaction
d)
as the reaction slows, the slope gets more shallow
32.

What can be measured in this experiment to show the rate of the reation?

a)

The amount of magnesium

b)

The amount of the hydrochloric acid

c)

The amount of water in the trough

d)

The amount of hydrogen gas produced

33.

What can be measured in this experiment to show the rate of the reation?

a)

The amount of magnesium

b)

The amount of the hydrochloric acid

c)

The amount of water in the trough

d)

The amount of hydrogen gas produced

34.

In an experiment to test the effect of particle size on rate of reaction, what should be changed?

a)

The size of the marble chips

b)

The amount of hydrochloric acid

c)

The amount of marble chips

d)

The size of the cotton wool

35.
Smaller particle size allows for a _________ surface area to be exposed for the reaction.
a)
larger
b)
smaller
36.
Usually lowering the temperature will slow down a reaction.
a)
false
b)
true
37.
What two types of measurements make up DENSITY? 
a)
Mass and Volume
b)
Temperature and Mass
c)
Grams and Centimeters
d)
Volume and Weight
38.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
39.
What units can be used to express density?
a)
g/mL
b)
grams
c)
millimeters
d)
milliliters
40.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
41.
Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?
a)
3 g/cm3
b)
1/3 g/cm3
c)
27 g/cm3
d)
39 g/cm3
42.
An object should float in a liquid if it is 
a)
Denser than the liquid 
b)
Less dense than the liquid
c)
Lighter than metal
d)
 Shaped like a ball 
43.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
44.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
45.
Helium balloons rise on earth because
a)
helium is less dense than air
b)
helium is more dense than air
c)
helium is cooler than air
d)
helium is warmer than air
46.

What is the formula for Volume?

a)

Mass/Volume

b)

Density x Volume

c)

Mass/Density

47.

What is the formula for Mass?

a)

Mass/Volume

b)

Density x Volume

c)

Mass/Density

48.
The tool used to measure the mass of a substance or object is a ______________.
a)
balance
b)
graduated cylinder
c)
ruler
d)
thermometer
49.
An empty beaker has a mass of 60 grams.  When mercury is added to the beaker, it has a mass of 200 grams. What is the mass of the mercury?
a)
140 grams
b)
200 grams
c)
140 mL
d)
260 g
50.
This is a measurement of the amount of matter, or 'stuff', in an object or substance.
a)
volume
b)
density
c)
mass
d)
length

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