contestada

balance the following equations:
a. ____AgI + _____Na2S → _____Ag2S + _____NaI

b. ____Na3PO4 + ____HCl →_____NaCl + _____H3PO4

c. _____Ba3N2 + _____H2O →_____Ba(OH)2 + _____NH3

d. _____TiCl4 + _____H2O →_____TiO2 + _____HCl

e. _____CaCl2 + _____Na3PO4 →_____Ca3(PO4)2 + _____NaCl