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PLEASE HELP ME!!
1) When a metal forms a metal oxide, why does the mass increase?

2) When an acid reacts with a metal, why does the mass decrease?

Respuesta :

priscillarae471

Answer:

masses are constant in chemical reactions

Explanation:

 I assume you are asking why you might get more mass out of a reaction between a metal and an acid with respect to the mass of the metal you put in.......

Metals tend to form salts in acids.......