Given the reaction: Ca + 2H20 - Ca(OH)2 + H2 What is the total number of moles of Ca needed to react completely with 6.0 moles of H20?

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asked Jan 22, 2024 107k views

1 Answer

Stuzzo · Answer 1 · 2024-01-29T06:35:17+0000

To determine the number of moles of Ca needed to react completely with 6.0 moles of H20, we can balance the equation:

Ca + 2H2O -> Ca(OH)2 + H2

Since the number of moles of H2O is given (6.0 moles), we can calculate the number of moles of Ca needed to react with this amount of H2O:

6.0 moles H2O / 2 moles H2O/mole Ca = 3.0 moles Ca

So, to react completely with 6.0 moles of H2O, 3.0 moles of Ca are needed.