When calcium hydroxide reacts with hydrochloric acid, calcium chloride and water are produced. The balanced equation for this reaction is:

Question

Ca (OH)2 (aq) + 2HCI(aq) —-> CaCl2 (aq) + 2H2O(l)

If 6 moles of hydrochloric acid react,

The reaction consumes____moles of calcium hydroxide

The reaction produces____ moles of calcium chloride and ___ moles of water.

Answer 1

Ca(OH)₂(aq) + 2HCI(aq) —-> CaCl₂(aq) + 2H₂O(l)

The balanced equation tells us that for every 2 moles of HCl consumed

1. there is 1 mole of Ca(OH)₂ consumed
2. there is 1 mole of CaCl₂ formed
3. there are 2 moles of H₂O formed

So for every 3×2 = 6 moles of HCl consumed

1. there are 3×1 = 3 moles of Ca(OH)₂ consumed
2. there are 3×1 = 3 moles of CaCl₂ formed
3. there are 3×2 = 6 moles of H₂O formed