Question

calcium hydroxide is manufactured by heating calcium carbonate strongly to produce calcium oxide, and then adding a controlled amount of water to produce calcium hydroxide.
CaCO3(s)=CaO(s)+CO2(g)
CaO(s)+H2O(i)=Ca(OH)2(s)
a.) what mass of water would you produce from 1 tonne of calcium carbonate?
b.) what mass of water would you need to add to that calcium oxide?
c.) What mass of calcium hydroxide would you eventually produce?
(RAMs: H=1, C=12, O=16, Ca=40.)