1. Balanced Chemical Equation:

The reaction between calcium (Ca) and water (H₂O) produces calcium hydroxide (Ca(OH)₂) and hydrogen gas (H₂):

Ca + 2H₂O → Ca(OH)₂ + H₂

2. Mole Ratio:

The balanced equation shows that 1 mole of calcium reacts with 2 moles of water.

3. Calculate Moles of Water Needed:

Since we have 3.00 moles of calcium, we need:

3.00 moles Ca × (2 moles H₂O / 1 mole Ca) = 6.00 moles H₂O

4. Compare Needed Water to Available Water:

We need 6.00 moles of water, but we only have 8.00 moles of water. This means we have enough water.

5. Limiting Reactant:

Since we have enough water and not enough calcium, calcium is the limiting reactant.