Question

how acid reaction with metal​

Answer 1

acids react with metal and liberate hydrogen gas

Answer 2

$here \: is \: your \: answer \: mate$

$when \: acid \: react \: with \: metal \: it \: forms \: \\ salt \: and \: hydrogen \: gas \\ \\ acid \: + metal \: \: - > salt \: + hydrogen \: gas$