Question

write a balanced chemical equation for the following reaction magnesium reacts with dilute hydrochloric acid and zinc carbonate is heated

Answer 1

When Mg is reacting with the dil. Hydrochloric acid it gives rise to magnesium chloride and liberation of hydrogen. Here is the balanced chemical equation, Mg + 2HCl gives rise to the mgcl2 + H2 (Hydrogen is liberated)

Answer 2

1. Mg + 2HCl = MgCl2 +H2
2.ZnCO3-->ZnO +CO2