Question

How many moles of H2 gas will be produced from 2Mg+2HCl=MgCl2+H2

Answer 1

Answer:

2 moles of H2 gas will be produced.

Explanation:

1st) It is necessary to write the balanced reaction:

$2Mg+4HCl\rightarrow2MgCl_2+2H_2$

2nd) From the balanced equation we can find the moles of H2 gas that will be produced.

So, from the reaction, 2 moles of H2 gas will be produced.