Ответ:
2Pb + O2 = 2PbO
2Ag + S = Ag2S
4K + O2 = 2K2O
H2 + F2 = 2HF
4Li + O2 = 2Li2O
4B + 3O2 = 2B2O3
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Ответ:
2Pb + O2 = 2PbO
2Ag + S = Ag2S
4K + O2 = 2K2O
H2 + F2 = 2HF
4Li + O2 = 2Li2O
4B + 3O2 = 2B2O3