a)2Na+Cl2=2NaCl
Ca+Cl2=CaCl2
2Fe+3Cl2=2FeCl3
b)2B+3F2=2BF3
C+2F2=CF4
2P+5F2=2PF5
c)4Li+O2=2Li2O
4Al+3O2=2Al2O3
4P+5O2=2P2O5
d)3Mg+2P=Mg3P2
3Si+2N2=Si3N4
3Mg+N2=Mg3N2
e)4FeO+O2=2Fe2O3
2FeCl2+Cl2=2FeCl3
f)2Cr2O4=2Cr2O3+O2
2Cl2O7=2Cl2+7O2
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Answers & Comments
a)2Na+Cl2=2NaCl
Ca+Cl2=CaCl2
2Fe+3Cl2=2FeCl3
b)2B+3F2=2BF3
C+2F2=CF4
2P+5F2=2PF5
c)4Li+O2=2Li2O
4Al+3O2=2Al2O3
4P+5O2=2P2O5
d)3Mg+2P=Mg3P2
3Si+2N2=Si3N4
3Mg+N2=Mg3N2
e)4FeO+O2=2Fe2O3
2FeCl2+Cl2=2FeCl3
f)2Cr2O4=2Cr2O3+O2
2Cl2O7=2Cl2+7O2