write the balanced chemical equations for the following:
(a)calcium carbonate reacts with hydrochloric acid.
(b)calcium hydrochloride reacts with hydrochloric acid.
(c)sodium hydroxide reacts with zinc.
The balanced chemical equations for the said reactions are as follows
(a) CaCO3 + 2HCl → CaCl2 + H2O + CO2
(b) Ca(OH)2 + 2HCl → CaCl2 + 2H2O
(c) 2NaOH + Zn → Na2ZnO2 + H2