Can someone help me out with this chemistry questions?

Question

Which one is correctly balanced?

3 Cu(NO3) 2 2 2Na3 PO4 -> Cu3 (PO4) 2 6 NaNO3

3 Cu(NO3) 2 2 Na3 PO4 -> Cu3 (PO4) 2 6 NaNO3

3 Cu(NO3) 2 2 Na3 2PO4 -> Cu3 (PO4) 2 6 NaNO3

Is it B?

Answer 1

Yes, B is correct

You can check it in this way by finding out the no. of atoms on both reactant side and the product side. If they are same, then the equation is balanced.

the second balanced reaction is :-



2NaNO3 + PbO ----> Pb(NO3)2 + Na2O

Just add 2 to NaNO3.

Don't forget to choose my answer as the best.