1)Ca->Ca2(OH)->CaO->CaCl2->Ca
2)CuCl2->Cu->CuO->CuCl2->Cu(Oh)2->CuO
Сa + 2H2O = Ca(OH)2 + H2
Ca((OH)2 =t= CaO +H2O
CaO + 2HCl = CaCl2 + H2O
CaCl2 =эл. ток = Сa + Сl2
CuCl2 + Mg = Cu + MgCl2
2Cu + O2 =t= 2CuO
CuO + 2HCl = CuCl2 + H2O
CuCl2 + 2NaOH = Cu(OH)2 + 2 NaCl
Cu(OH)2 =t= CuO + H2O
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Answers & Comments
Сa + 2H2O = Ca(OH)2 + H2
Ca((OH)2 =t= CaO +H2O
CaO + 2HCl = CaCl2 + H2O
CaCl2 =эл. ток = Сa + Сl2
CuCl2 + Mg = Cu + MgCl2
2Cu + O2 =t= 2CuO
CuO + 2HCl = CuCl2 + H2O
CuCl2 + 2NaOH = Cu(OH)2 + 2 NaCl
Cu(OH)2 =t= CuO + H2O