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2Cu + O2 ---> 2CuO
CuO + HCl ---> CuCl2 + H2O
CuCl2 + Ba(OH)2 ---> Cu(OH)2 + BaCl2
Cu(OH)2 ---to--> CuO + H2O
CuO + SO3 ---> CuSO4
CuSO4 + Pb(NO3)2 --->Cu(NO3)2 + PbSO4
em tham khảo nha
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CuCl2 + Ba(OH)2 \(\rightarrow\) Cu(OH)2 + BaCl2
Cu(OH)2 \(\underrightarrow{t^0}\) CuO + H2O
CuO + H2SO4 \(\rightarrow\) CuSO4 + H2O
CuSO4 + Ba(NO3)2 \(\rightarrow\) Cu(NO3)2 + BaSO4
PTHH:
Cu + H2SO4 → H2 + CuSO4
CuSO4 + BaCl2 → BaSO4 + CuCl2
CuCl2 + Ba(OH)2 → BaCl2 + Cu(OH)2
Cu(OH)2 \(\underrightarrow{t^0}\) H2O + CuO
2CuO \(\underrightarrow{t^0}\) 2Cu + O2
Cu + H2SO4(ĐẶC NÓNG) -\(t^O\)> CuSO4 + 2H2O + SO2
CuSO4 + BACL2 -> CuCL2 + BASO4
CuCL2 + Pb(OH)2 -> Cu(OH)2 + PbCL2
Cu(OH)2 -\(t^O\)> CuO + H2O
CuO + H2 -\(t^O\)> Cu + H2O
\(\left(4\right)CuO+H_2SO_4\rightarrow CuSO_4+H_2O\)
\(K_2O,BaO,Na_2O,CaO,Li_2O\) mới td đc với oxit axit chứ a
\(\left(1\right)CuO+2HCl\rightarrow CuCl_2+H_2O\\ \left(2\right)CuCl_2+2KOH\rightarrow Cu\left(OH\right)_2\downarrow+2KCl\\ \left(3\right)Cu\left(OH\right)_2\rightarrow\left(t^o\right)CuO+H_2O\\ \left(4\right)CuO+H_2SO_4\rightarrow CuSO_4+H_2O\)
\(Cu+Cl_2\xrightarrow[]{t^0}CuCl_2\\ CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\\ Cu\left(NO_3\right)_2+2KOH\rightarrow Cu\left(OH\right)_2+2KNO_3\\ Cu\left(OH\right)_2\xrightarrow[]{t^0}CuO+H_2O\\ CuO+H_2SO_4\rightarrow CuSO_4+H_2O\\ CuSO_4+Mg\rightarrow MgSO_4+Cu\)
Cu+Cl2➝CuCl2
CuCl2+2AgNO3➝Cu(NO3)2+2AgCl↓
Cu(NO3)2+2NaOH➝ Cu(OH)2↓+2NaNO3
Cu(OH)2➝CuO+H2O
CuO+H2SO4➝CuSO4+H2O
CuSO4+Mg(OH)2➝Cu(OH)2↓+MgSO4
\(\text{CuO+2HCl(dung dịch pha loãng)=CuCl2+H2O}\)
\(\text{Ca(OH)2+CuCl2→Cu(OH)2↓+CaCl2}\)
\(\text{Cu(OH)2 → CuO + H2O}\)
\(\text{CuO + H2SO4 → H2O + CuSO4}\)
\(\text{CuSO4(dung dịch pha loãng)+H2=Cu↓+H2SO4}\)
PT cuối sai
\(CuO+2HCl->CuCl_2+H_2O\)
\(CuCl_2+2NaOH->Cu\left(OH\right)_2+2NaCl\)
\(Cu\left(OH\right)_2->CuO+H_2O\) (Nhiệt độ nữa nha bạn)
\(CuO+H_2SO_4->CuSO_4+H_2O\)
\(CuSO_4\:+Fe->FeSO_4+Cu\)
\(Cu+2AgNO_3->Cu\left(NO_3\right)_2+2Ag\)
a)
(1) \(2Al+3FeCl_2\rightarrow2AlCl_3+3Fe\)
(2) \(2Fe+3Cl_2\underrightarrow{t^o}2FeCl_3\)
(3) \(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3\downarrow+3NaCl\)
(4) \(2Fe\left(OH\right)_3\underrightarrow{t^o}Fe_2O_3+3H_2O\)
b)
(1) \(2Cu+O_2\underrightarrow{t^o}2CuO\)
(2) \(CuO+2HCl\rightarrow CuCl_2+H_2O\)
(3) \(CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\downarrow\)
(4) \(Cu\left(NO_3\right)_2+2NaOH\rightarrow Cu\left(OH\right)_2\downarrow+2NaNO_3\)
(5) \(Cu\left(OH\right)_2\underrightarrow{t^o}CuO+H_2O\)
(6) \(CuO+H_2\underrightarrow{t^o}Cu+H_2O\)
CuSO4 + BaCl2 → CuCl2 + BaSO4↓
CuCl2 + 2NaOH → 2NaCl + Cu(OH)2↓
Cu(OH)2 \(\underrightarrow{to}\) CuO + H2O
CuO + 2HNO3 → Cu(NO3)2 + H2O