Question

Balance the following equations:

1) Magnesium carbonate reacts with hydrochloric acid to form carbon dioxide ,water and magnesium chloride .

2. Calcium + water gives rise to calcium hydroxide + hydrogen .

3. Sodium hydroxide + sulphuric acid gives rise to Sodium sulphate + water .

4. Hydrogen sulphide + sulphur dioxide gives rise to sulphur + water

Answer 1

MgCO3 + 2HCl --------› CO2 + H2O + MgCl2
Ca + 2H2O ----------› Ca(OH)2 + H2
2NaOH + H2SO4 ---------› Na2SO4 + 2H2O
2H2S + SO2 -----------› 2S + 2H2O
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