liho+h2s=
P + Na(OH) + H20 = NaH2PO2 + PH3
2 PbO + C -> 2 Pb + CO2
42
89
Balanced equation:12 HClO4 + P4O10 = 4 H3PO4 + 6 Cl2O7
The balance is 2N2 +2O2= 4NO
Chlorine has an oxidation number of +7 in perchloric acid (HClO4).
liho+h2s=
C3h8 + 5o2 -> 3co2 + 4h2o
4Li + O2 -> 2Li2O
2Al+3S--->Al2S3
P + Na(OH) + H20 = NaH2PO2 + PH3
2 PbO + C -> 2 Pb + CO2
3H2C2O4 + 2K2MnO4 = 6CO2 + 2K2O + Mn2O3 + 3H2O
It is already balanced
3h2 + n2 ==> 2nh3