What happens when a metal reacts with an acid?

1 Answer

Acids reacts with reactive metals, such as magnesium and zinc, to make a salt and hydrogen.

Explanation:

Acids reacts with reactive metals, such as magnesium and zinc, to make a salt and hydrogen.

acid + metal #rarr# salt + hydrogen

For example:

magnesium + sulfuric acid #rarr# magnesium sulfate + hydrogen

#"Mg"("s")# + #"H"_2"SO"_4("aq")##"MgSO"_4("aq")# + #"H"_2("g")#

The hydrogen causes bubbling during the reaction. It can be detected using a lighted splint, which causes the gas to burn with a squeaky pop.