Question

Guys please I need an answer for this asap

Mg+2HCl -> MgCl+H2

0.2 mole of mg reacted with 0.2 of HCl

What is the mass of hydrogen gas produced?

Answer 1

i need more information, there are meant to be coefficients in front of one of those ..

but you’d put .2 over the coefficients, and if there is not one, you put an X. then you will cross multiply, and divide if you have 2x or something greater than X.