For the redox reaction xP4+yHNO3→H3PO4+NO2+H2O
The balanced equation is P4+20 HNO3→4H3PO4+20 NO2+4 H2O
In the redox reaction
xMnO +yPbO2+zHNO3⟶HMnO4 +Pb(NO3)2 +H2O
X1234Y10203040 What would be the constant that defines the value XY?