26.6k views
1 vote
Ca + 2H2O → Ca(OH)2 + H2.

How many moles of H2O are needed to exactly react with 2. 0 moles of Ca?

1 Answer

6 votes

Answer:

The balanced chemical equation shows that 1 mole of Ca reacts with 2 moles of H2O to produce 1 mole of Ca(OH)2 and 1 mole of H2.

Therefore, to react with 2.0 moles of Ca, we need 2.0 moles of Ca x (2 moles H2O / 1 mole Ca) = 4.0 moles of H2O.

So, 4.0 moles of H2O are needed to exactly react with 2.0 moles of Ca.

User Fullhdpixel
by
8.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.