Question

What happens when; (Give equation only) 2 marks

1) Magnesium is introduced in copper sulphate solution.

2) Zinc is added in sulphuric acid.​

Answer 1

Answer:

1) Mg(s) + CuSO4(aq) gives Cu(s) + MgSO4(aq)

2) Zn(s) + H2SO4(aq) gives ZnSO4(aq) + H2(g)

They are balanced reactions

Answer 2

Answer:

1)Mg (s) + CuSO4 (aq) → Cu (s) + MgSO4 (aq)

2)Zn+H2 SO4(aq)-->ZnSO4(aq)+H2

Explanation:

1. When magnesium is placed in copper sulfate solution a redox reaction occurs, causing copper metal to form on the magnesium and the deep blue colour of the solution pales.
2. Hydrogen gas is produced when zinc is reacted with sulphuric acid.