1) 2Na+2HCl=2NaCl+H2
2) Ba+H2SO3=BaSO3+H2
3) 2Al+3H2SO4=Al2(SO4)3+3H2
4) 3Zn+2H3PO4=Zn3(PO4)2+3H2
5) Fe+H2S=FeS+H2
6) 2Fe+6HCl=2FeCl3+3H2
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Answers & Comments
1) 2Na+2HCl=2NaCl+H2
2) Ba+H2SO3=BaSO3+H2
3) 2Al+3H2SO4=Al2(SO4)3+3H2
4) 3Zn+2H3PO4=Zn3(PO4)2+3H2
5) Fe+H2S=FeS+H2
6) 2Fe+6HCl=2FeCl3+3H2