I need help Calculating the mass of HCL neede to react with 20.0 grams Zn.

Question

Zn+HCL -> ZnCl2+H2

Answer 1

Balance the equation first.

then, look at the coefficents. How many moles of HCl will be needed for each mole of Zn?

How many moles of Zn is twenty grams?