How many moles of hydrogen gas are generated when 4.0 moles of water react with excess calcium

Question

Javion Small

Chemistry

21 February, 11:57

How many moles of hydrogen gas are generated when 4.0 moles of water react with excess calcium

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Answers (1)

Know the Answer?

Rohan Reed · Answer 1

2moles of H2

Explanation:

First, let us generate a balanced equation for the reaction between calcium and water. This is illustrated below:

Ca + 2H20 - > Ca (OH) 2 + H2

From the equation,

2moles of H2O produced 1mole of H2.

Therefore 4moles of H2O will produce = 4/2 = 2moles of H2.