Question

NOX MÉDIO DE FÓSFORO
H4P2O7

Answer 1

H= +1
P= x
O= -2
4.(+1)+2.x+7.(-2)=0
4+2x+(-14)=0
2x= -4+14
2x= 10
x= 10%2
x= +5

Answer 2

H= +1
P= x
O= -2
4.(+1)+2.x+7.(-2)=0
4+2x+(-14)=0
2x= -4+14
2x= 10
x= 10%2
x= +5