the balanced equations are: H3PO4(aq) + 3[NaOH](aq) = Na3PO4(aq) + 3[H2O](l) 2[HI](aq) + LiO(aq) = LiI2(aq) + H2O(l) 2[HNO3](aq) + Ca(OH)2(s) = Ca(NO3)2(aq) + 2[H2O](l) Solution the balanced equations are: H3PO4(aq) + 3[NaOH](aq) = Na3PO4(aq) + 3[H2O](l) 2[HI](aq) + LiO(aq) = LiI2(aq) + H2O(l) 2[HNO3](aq) + Ca(OH)2(s) = Ca(NO3)2(aq) + 2[H2O](l).