(a) What happens when dilute hydrochloric acid is added to sodium carbonate ? Write a balanced chemical equation of the reaction involved.
(b) Which gas is liberated when dilute hydrochloric acid reacts with sodium carbonate ? How will you test for the presence of this gas ?
Name the gas produced when aluminium foil reacts with :
(a) dilute hydrochloric acid.
(b) sodium hydroxide solution.