tlenek litu- Li2O
4Li+O2--->2Li2O
Li-O-Li
tlenek baru- BaO
2Ba+O2--->2BaO
Ba=O
tlenek chromu(III)- Cr2O3
4Cr+3O2--->2Cr2O3
O=Cr-O-Cr=O
tlenek siarki(IV)- SO2
S+O2--->SO2
O=S=O
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tlenek litu- Li2O
4Li+O2--->2Li2O
Li-O-Li
tlenek baru- BaO
2Ba+O2--->2BaO
Ba=O
tlenek chromu(III)- Cr2O3
4Cr+3O2--->2Cr2O3
O=Cr-O-Cr=O
tlenek siarki(IV)- SO2
S+O2--->SO2
O=S=O