Отметьте реакции разложения 1.Pb + O2 = PbO 2
2.CaCO 3 + SO 2 = CaSO3 + CO2
3.2HgO = 2Hg + O2
4.2NaNO 3 = 2NaNO 2 + O2
5.2Na + 2H2O = 2NaOH + H2
6.CaCO 3 = CaO + CO 2
2.CaCO 3 + SO 2 = CaSO3 + CO2
3.2HgO = 2Hg + O2
4.2NaNO 3 = 2NaNO 2 + O2
5.2Na + 2H2O = 2NaOH + H2
6.CaCO 3 = CaO + CO 2
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