How Many Moles of Water React with 0

Multiple Choice

How many moles of water react with 0.500 mol of calcium metal? __Ca(s) + __H₂O(l) → __Ca(OH) 2(aq) + __H₂(g)

A) 0.250 mol
B) 0.500 mol
C) 1.00 mol
D) 2.00 mol
E) none of the above