Question

translate the following statements in chemical equation and then balance them
1. hydrogen sulphide has burns in air to give water and sulphur dioxide.
2. barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
3. potassium metal reacts with water and give potassium hydroxide and hydrogen gas.​

Answer 1

1) H2S(g) + O2(g) → H2O(l) + SO2(g)

2) Al2(SO4)3 + 3BaCl2→ 2AlCl3 + 3BaSO4

3) 2K(s)+2H 2O(l) → 2KOH(aq) + H 2(g)