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chocolate00
@chocolate00
December 2021
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Даны вещества: Na,Cu,Zn,H2O,S,CuSO4,HCl.
Составить не менее 7 уравнений которые могут происходить между этими веществами.
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alyaigoreva
а)2K+2H2O-> 2KOH+H2
2KOH+H2CO3-> K2CO3+ 2H2O
K2CO3+HNO3-> KNO3+CO2+H2O
2KNO3+H2SO4->K2SO4+2HNO3
b) Zn+2HCl->ZnCl2+H2
ZnCl2+2KOH-> 2KCl+Zn(OH)2
Zn(OH)2-> (t)-> ZnO+H2O
ZnO+2HNO3-> Zn(NO3)2=H2O
в)2Cu+O2->2CuO
CuO+H2SO4-> CuSO4+H2O
CuSO4+2KOH->K2SO4+Cu(OH)2
Cu(OH)2-(t)->CuO+H2O
CuO+2HCL-> CuCl2+H2O
г) C+O2(ИЗБ)->CO2
CO2+Na2O->Na2CO3
Na2CO3+CA(OH)2->CaCO3+2NaOH
CaCO3-(t)->CaO+CO2
д) 2H2+O2->2H2O
2H2O+2NA->2NaOH+H2
2NaOH+CO2->Na2CO3+H2
Na2CO3+2HNO3->2NaNO3+CO2+H2O
е) S+H2-(t)->H2S
H2S+2NAOH->Na2S+2H2O
Na2S+Fe(OH)2->FeS+2NAOH
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Answers & Comments
а)2K+2H2O-> 2KOH+H2
2KOH+H2CO3-> K2CO3+ 2H2O
K2CO3+HNO3-> KNO3+CO2+H2O
2KNO3+H2SO4->K2SO4+2HNO3
b) Zn+2HCl->ZnCl2+H2
ZnCl2+2KOH-> 2KCl+Zn(OH)2
Zn(OH)2-> (t)-> ZnO+H2O
ZnO+2HNO3-> Zn(NO3)2=H2O
в)2Cu+O2->2CuO
CuO+H2SO4-> CuSO4+H2O
CuSO4+2KOH->K2SO4+Cu(OH)2
Cu(OH)2-(t)->CuO+H2O
CuO+2HCL-> CuCl2+H2O
г) C+O2(ИЗБ)->CO2
CO2+Na2O->Na2CO3
Na2CO3+CA(OH)2->CaCO3+2NaOH
CaCO3-(t)->CaO+CO2
д) 2H2+O2->2H2O
2H2O+2NA->2NaOH+H2
2NaOH+CO2->Na2CO3+H2
Na2CO3+2HNO3->2NaNO3+CO2+H2O
е) S+H2-(t)->H2S
H2S+2NAOH->Na2S+2H2O
Na2S+Fe(OH)2->FeS+2NAOH