C1 Topic 3 - Acids

Question 0

What are the general reactions for an acid and a metal oxide; an acid and a metal carbonate; and an acid and a metal hydroxide?

Answer 0

Acid + Metal Oxide -> Salt + Water
Acid + Metal Carbonate -> Salt + Water + Carbon Dioxide
Acid + Metal Hydroxide -> Salt + Water

Question 1

What is the general equation for when an acid is mixed with a base?
What is this type of equation called?

Answer 1

Acid + Base -> Salt + Water

Neutralisation reaction

Question 2

Define electrolysis.

Answer 2

The breaking down of a compound using electricity.

Question 3

What is made in the electrolysis of hydrochloric acid?

Answer 3

H2 gas at the negative electrode

Cl2 gas at the positive electrode

Question 4

Describe the test for chlorine gas.

Answer 4

Chlorine bleaches damp litmus paper.

Question 5

Describe the test for hydrogen gas.

Answer 5

When lit with a burning splint, hydrogen makes a squeaky pop from the reaction with the hydrogen and the oxygen to form water.

Question 6

What are the products of the electrolysis of a sodium chloride solution?

Answer 6

Chlorine and hydrogen gas

Question 7

What are the products of electrolysis of water?

Answer 7

Hydrogen gas and oxygen