Question

what do you observe when a metal react with an acid​

Answer 1

Explanation:

When acids react with metals, they produce a salt and hydrogen gas. Most metals react with acids, but not all. The general equation that describes the chemical reaction between an acid and metal is metal + acid = salt + hydrogen gas.

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Answer 2

Answer:

When metal react with acid then salt and Hydrogen gas is formed...

For ex-

Ca(s) +2HCl(aq) -----> CaCl2(aq) + H2(g)

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