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elena1510
@elena1510
July 2022
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1. Напишите уравнения реакции,следующих превращений : Са ->CaO->Ca(OH)2->CaCl2->Ca
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svetka1574
Verified answer
2Ca + O2 -> 2CaO
CaO + H2O -> Ca(OH)2
Ca(OH)2 + 2HCl -> CaCl2 + 2H2O
CaCl2 -> Ca + Cl2
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Verified answer
2Ca + O2 -> 2CaOCaO + H2O -> Ca(OH)2
Ca(OH)2 + 2HCl -> CaCl2 + 2H2O
CaCl2 -> Ca + Cl2