2HgO =t 2Hg + O2
4Al + 3O2 = 2Al2O3
2H2O = 2H2 + O2
2Ca + O2 = 2CaO
CaO + H2O = Ca(OH)2
2CuO =t 2Cu + O2
Cu + HgCl2 = CuCl2 + Hg
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Answers & Comments
2HgO =t 2Hg + O2
4Al + 3O2 = 2Al2O3
2H2O = 2H2 + O2
2Ca + O2 = 2CaO
CaO + H2O = Ca(OH)2
2CuO =t 2Cu + O2
Cu + HgCl2 = CuCl2 + Hg