A) what happen when an acid reacts with a metal? give chemical equation of the reaction involved. b) which gas is usually liberated when an acid reacts with a metal? how will you test for the presence of this gas?
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A.when an acid reacts with a metal it produces H2 gas and pop sound
equation:-
Fe+H2So4--------(gives rise to) FeSo4+ H2 gas
(ppt) precipitate
B.H2 gas is usually liberated when an acid reacts with a metal
after the solution is prepared close the test tube using a rubber cork then u will find vapours of H2 gas and if u opened rubber cork u will listen some pop sound
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