Ułóż trzy równania reakcji syntezy tlenu metalem : a)jednowartościowym b)dwuwartościowym c)trójwartościowym
a)4K+O2--->2K2O
4Na+O2--->2Na2O
4Li+O2-->2Li2O
b)2Zn+O2-->2ZnO
2Ba+O2--->2BaO
2Mg+O2--->MgO
c)2Al+1,5O2--->Al2O3 /*2
4Al+3O2--->2Al2O3
2Fe+1,5O2----->Fe2O3 /*2
4Fe+3O2----->2Fe2O3
2Bi+1,5O2---->Bi2O3 /*2
4Bi+3O2---->2Bi2O3
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a)4K+O2--->2K2O
4Na+O2--->2Na2O
4Li+O2-->2Li2O
b)2Zn+O2-->2ZnO
2Ba+O2--->2BaO
2Mg+O2--->MgO
c)2Al+1,5O2--->Al2O3 /*2
4Al+3O2--->2Al2O3
2Fe+1,5O2----->Fe2O3 /*2
4Fe+3O2----->2Fe2O3
2Bi+1,5O2---->Bi2O3 /*2
4Bi+3O2---->2Bi2O3