Question

explain an experiment that acids and bases produce hydrogen gas when reacted with a metal

Answer 1

Zinc metal reacts with hydrochloric acid producing zinc chloride and hydrogen gas.

Answer 2

All highly active metal react with acid realese hydrogen gas

HNo3 + Al -----> Al(No3)3 + H2

HNo3 + k -----> k(No3) + H2

HNo3 + Ca-----> Ca(No3)2 + H2