Question

Write the chemical equation for: 1 - Aluminium comes in contact with air 2 - Iron reaction with hydrochloric acid 3 - Iron contact with water vapour ​

Answer 1

1. 4Al + 3O2 = 2Al2O3.

2. Fe + 2HCl = FeCl2 + H2.

3. 2Fe + 3H2O = Fe2O3 + 3H2.

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Answer 2

Answer:

4Al (l) + 3O2 (g )-----2Al2O3(l)

Fe (s) + Hcl (aq)---- Fecl2 (aq)+ H(g)