Question

1 point
7. Generally, when certain
metals react with an acid they
release
gas. *
Nitrogen
Oxygen
O Hydrogen
O Argon

Answer 1

Answer:

When and acid reacts with metal,a salt and hydrogen are produced

Answer 2

whenever a metal react with acid hydrogen is released (h2)

     

       example : Zn + 2HCL =ZnCl2 + h2