Reactions of Acids

Question 1

Acid + Alkali –> -? + ?

Answer 1

Salt + Water

Question 2

Acid + Base –> ? + ?

Answer 2

Salt + Water

Question 3

Acid + Metal –> ? + ?

Answer 3

Salt + Hydrogen

Question 4

Acid + Metal Carbonate –> ? +? + ?

Answer 4

Salt + Water + Carbon Dioxide

Question 5

Crystals of a soluble salt can be obtained by which separation technique?

Answer 5

Evaporation / Crystallisation

Question 6

What is the test for hydrogen?

Answer 6

A lit splint to give a squeaky pop

Question 7

What is the test for carbon dioxide?

Answer 7

Turns limewater milky

Question 8

Give an example of a base.

Answer 8

A metal oxide e.g copper oxide

Question 9

Give an example of an alkali.

Answer 9

A metal hydroxide e.g sodium hydroxide

Question 10

Magnesium and hydrochloric acid react together to produce which salt?

Answer 10

Magnesium chloride

Question 11

Copper oxide and sulfuric acid react together to produce which salt?

Answer 11

Copper sulfate

Question 12

When we made copper sulfate crystals from copper oxide powder and sulfuric acid, we deliberately added too much copper oxide. What word means ‘too much’ and how did we remove this extra powder from the mixture.

Answer 12

• Excess
• Filtering

Question 13

Name the products when calcium carbonate and nitric acid react.

Answer 13

calcium nitrate + water + carbon dioxide