Question

Balance these equations​

Answer 1

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Answer 2

1).2H2+O2 -------- 2(H2O)

2) MnO2 + 4(HCl) ------ MnCl2 +2(H2O) + Cl2
3. 2Pb(NO3)2 ----- 2PbO + 4 NO2 + O2
d. is balanced
e.Ca(OH2)+ 2HNO3 ------Ca(NO3)2 + 2H2O