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alyasakhapova
@alyasakhapova
August 2022
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Решите плиз мне вот эти цепочку уравнения .8 класс.Помогите ))
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Andreniks
Ca+O2=Cao
CaO+H2O=Ca (OH)2
Ca (OH)2+2HCl=CaCl2+2H2O
Zn+2HCl=ZnCl2+H2
ZnCl2+2NaOH=Zn (OH)2+2NaCl
Zn (OH)2=ZnO+H2O (при прокаливании)
2 Cu+O2=CuO
CuO+2HCl=CuCl2+H2O
CuO+H2SO4=CuSO4+H2O
CuO+Zn=ZnO+Cu
CUCL2=cu+Cl2 (электролиз)
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Answers & Comments
CaO+H2O=Ca (OH)2
Ca (OH)2+2HCl=CaCl2+2H2O
Zn+2HCl=ZnCl2+H2
ZnCl2+2NaOH=Zn (OH)2+2NaCl
Zn (OH)2=ZnO+H2O (при прокаливании)
2 Cu+O2=CuO
CuO+2HCl=CuCl2+H2O
CuO+H2SO4=CuSO4+H2O
CuO+Zn=ZnO+Cu
CUCL2=cu+Cl2 (электролиз)