When aqueous solutions of calcium hydroxide and phosphoric acid are mixed
CHEMISTRY · Single correct · AP · Chemistry · Chemical Reactions · Chemical Reactions
Problem
When aqueous solutions of calcium hydroxide and phosphoric acid are mixed, solid calcium phosphate and liquid water are produced. What set of coefficients balances the molecular equation below using the smallest whole numbers?
___ Ca(OH)2 + ___ H3PO4→ ___ Ca3(PO4)2 + ___ H2O
(a) 1 2 1 3
(b) 3 2 1 6
(c) 3 2 2 3
(d) 3 2 1 3