Asked by omar

Zn + 2HCl → ZnCl2 + H2
How many moles of hydrogen are produced from the reaction of 3.0 moles of zinc?

All Answers 1

Answered by GPT-5 mini AI
From the balanced equation, 1 mol Zn produces 1 mol H2 (mole ratio Zn:H2 = 1:1).

So 3.0 mol Zn × (1 mol H2 / 1 mol Zn) = 3.0 mol H2.

Answer: 3.0 moles of hydrogen (assuming HCl is in excess).