Question

Explain with the help of a chemical equations what happens when:

a) Copper is heated strongly in air

b) Iron reacts with steam

c) Sodium reacts with sulphuric acid

d) Zinc is added to sodium hydroxide

e) Copper is added to zinc sulphate solution​

Answer 1

Answer:

2 Cu (s) + O2(g) -> 2CuO

b. 3 Fe(s) + 4 H2O(g) > 4 H2(g) + Fe3O4 .

c. 2Na+ H2SO4-------Na2SO4 +H2

d. 2Zn+2NaOH→2Na+2Zn(OH)2.

e Zn(s) + CuSO4(aq) -> Cu(s) + ZnSO4 (aq).