Question

Zn + 2HCI ZnCl2 + H2

How many moles of hydrogen are produced from the reaction of 3.0 moles
of zinc?

Answer 1

3 moles

Step-by-step explanation:

Use the ratio

Yeah, I agree with the other person

Answer 2

3 moles H₂

Step-by-step explanation:

The reaction equation Zn + 2HCl => ZnCl₂ + H₂ shows a 1:1 mole ratio between Zn and molecular hydrogen (H₁). Therefore, the moles of Zn consumed in the reaction is then equal to the moles of H₂ produced. In this case using 3 moles Zn => 3 moles H₂ will be produced.