Como balanceo 1)P+Cl2—> PCl5

2)ZnS+O2—>ZnO+SO2

3)KMnO4+H2SO4—>K2SO4+MnSO4+H2O +O

4)Fe2O3+C—>Fe+CO

5)Hg+H2SO4—>HgSO4+H2O+SO2

6)HCl+MnO2—>MnCl2+H2O+Cl2

7)N2+O2—>N2O3

8)Cu+HNO3—>Cu(NO3)2+H2O+NO

9)Cu+H2SO4—>CuSO4+SO2+H2O

10) Al+H2SO4—>Al2(SO4)3+H2
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