Question

Balance reaction:
H3PO4 + Sn(NO3)4 -> Sn3(PO4)4 + HNo3

Answer 1

TO balance any chemical equation you simply add coefficients to the necessary reactants and products

So that you have the same number of

H
P
O
N
SN

Answer 2

I have already tried this :/

Answer 3

What are you having trouble with? If the co efficients are correct, there is no way to get a wrong answer.

Answer 4

4H3PO4 + 3Sn(NO3)4 = Sn3(PO4)4 + 12HNO3