Y8: Reactions Revision

• Chemistry
• Lower Secondary (Key Stage 3)

Y8: Reactions Revision

Acid

Neutral

Alkali

Taste sour

Soap

Water

pH 7

pH less than 7

pH more than 7

Lemon juice

Vinegar

Bleach

What colour will litmus paper turn in an acid?

1. Red
2. Blue

What colour will litmus paper go in vinegar?

1. Red
2. Blue

What colour will litmus paper go in bleach?

1. Red
2. Blue

Name the reactant(s).

1. Iron + oxygen
2. Iron oxide

Name the product(s).

1. Sodium + chlorine
2. Sodium Chloride

How many products are there?

1. 1
2. 2
3. 3
4. 4

How many products are there?

1. 1
2. 2
3. 3

In a neutralisation reaction an acid and alkali react to form a salt and water.

What are the reactants in a neutralisation reaction?

1. Acid + alkali
2. Salt + water

What is the pH of water?

1. Less than 7
2. 7
3. More than 7

What is hydrochloric acid?

1. Acid
2. Alkali

What is sodium hydroxide?

1. Acid
2. Alkali

What is potassium oxide?

1. Acid
2. Alkali

What is nitric acid?

1. Acid
2. Alkali

What is lithium hydroxide?

1. Acid
2. Alkali

A salt made with nitric acid will be a...

1. Chloride
2. Nitrate
3. Sulfate

A salt made with hydrochloric acid will be a...

1. Chloride
2. Nitrate
3. Sulfate

A salt made with sulfuric acid will be a...

1. Chloride
2. Nitrate
3. Sulfate

Which salt would be formed if iron hydroxide reacted with nitric acid?

1. Iron sulfate
2. Iron nitrate
3. Magnesium nitrate

Which salt would be formed if calcium hydroxide reacted with sulfuric acid?

1. Sulfur hydroxide
2. Hydrogen sulfate
3. Calcium sulfate

Name the salt.

1. Sodium nitrate
2. Sodium sulfate
3. Sodium chloride

Give the products of this neutralisation reaction.

1. Sodium sulfate + water
2. Sodium nitrate + water
3. Lithium sulfate + water
4. Lithium nitrate + water

Give the products of this neutralisation reaction.

1. Sodium sulfate + water
2. Sodium nitrate + water
3. Lithium sulfate + water
4. Lithium nitrate + water

What are the products of this reaction?

Nitric acid + calcium hydroxide

What is displacement?

2. Which of the following is a strong alkali?

1. Baking soda
2. Sodium hydroxide
3. Vinegar
4. Lemon juice

Write as many salts as you can in symbol formula

Which of the following is an example of an acid salt?

1. Potassium nitrate
2. Calcium chloride
3. Sodium hydrogen sulfate
4. Magnesium oxide

What happens when an acid salt is dissolved in water?

1. It has no effect on pH
2. It produces a basic solution
3. It turns into a gas
4. It produces a slightly acidic solution

What metal is most reactive?

1. Metal 2
2. Metal 3
3. Metal 1
4. They are equal

Describe what is happening here.....

What is the most reactive mental?

1. Silver
2. Cobalt
3. Barium
4. Lithium

What is the least reactive mental?

1. Copper
2. iron
3. Lead
4. Potassium