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\((1)Cu+2H_2SO_{4(\text{đ})}\xrightarrow{t^o} CuSO_4+2H_2O+SO_2\uparrow\\ (2)CuSO_4+BaCl_2\to CuCl_2+BaSO_4\downarrow\\ (3)CuCl_2+2NaOH\to Cu(OH)_2\downarrow +2NaCl\\ (4)Cu(OH)_2\xrightarrow{t^o}CuO+H_2O\\ (5)CuO+H_2\xrightarrow{t^o}Cu+H_2O\)
\(\left(4\right)CuO+H_2SO_4\rightarrow CuSO_4+H_2O\)
\(K_2O,BaO,Na_2O,CaO,Li_2O\) mới td đc với oxit axit chứ a
\(\left(1\right)CuO+2HCl\rightarrow CuCl_2+H_2O\\ \left(2\right)CuCl_2+2KOH\rightarrow Cu\left(OH\right)_2\downarrow+2KCl\\ \left(3\right)Cu\left(OH\right)_2\rightarrow\left(t^o\right)CuO+H_2O\\ \left(4\right)CuO+H_2SO_4\rightarrow CuSO_4+H_2O\)
a)
(1) \(Cu+2H2SO4\left(đ\right)-^{t0}->CuSO4+SO2\uparrow+2H2O\)
\(\left(2\right)CuSO4+BaCl2->CuCl2+BaSO4\downarrow\)
(3) \(CuCl2+2AgNO3->Cu\left(NO3\right)2+2AgCl\downarrow\)
(4) \(Cu\left(NO3\right)2+2NaOH->Cu\left(OH\right)2\downarrow+2NaNO3\)
(5) \(Cu\left(OH\right)2-^{t0}->CuO+H2O\)
(6) \(CuO+2HCl->CuCl2+H2O\)
(7) \(CuCl2-^{t0}->Cu+Cl2\uparrow\)
(8) \(Cu+Cl2-^{t0}->CuCl2\)
(9) \(CuCl2+2NaOh->Cu\left(OH\right)2\downarrow+2NaCl\)
b)
\(4Na+O2-^{t0}->2Na2O\)
\(Na2O+H2O->2NaOH\)
\(2NaOH+CO2->Na2CO3+H2O\)
\(Na2CO3+H2SO4->Na2SO4+CO2\uparrow+H2O\)
\(Na2SO4+BaCl2->2NaCl+BaSO4\downarrow\)
\(2NaCl+2H2O-\xrightarrow[có-màng-ngăn]{đpdd}2NaOH+Cl2\uparrow+H2\uparrow\)
\(3NaOH+H3PO4->Na3PO4+3H2O\)
\(\left(1\right)CuCl_2+2NaOH\rightarrow Cu\left(OH\right)_2+NaCl\)
\(\left(2\right)Cu\left(OH\right)_2+H_2SO_4\rightarrow CuSO_4+2H_2O\)
\(\left(3\right)CuSO_4+2NaCl\rightarrow Na_2SO_4+CuCl_2\)
\(\text{CuO+2HCl(dung dịch pha loãng)=CuCl2+H2O}\)
\(\text{Ca(OH)2+CuCl2→Cu(OH)2↓+CaCl2}\)
\(\text{Cu(OH)2 → CuO + H2O}\)
\(\text{CuO + H2SO4 → H2O + CuSO4}\)
\(\text{CuSO4(dung dịch pha loãng)+H2=Cu↓+H2SO4}\)
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)
\(CuO+H_2SO_4->CuSO_4+H_2O\)
\(CuSO_4\:+Fe->FeSO_4+Cu\)
\(Cu+2AgNO_3->Cu\left(NO_3\right)_2+2Ag\)
2Mg+O2--> 2MgO(1)
MgO+2HCl-->MgCl2+H2O(2)
MgCl2+2NaOH--> Mg(OH)2+2NaCl(3)
Mg(OH)2+CuSO4-->MgSO4+Cu(OH)2(4)
MgSO4+Ba(NO3)2-->Mg(NO3)2+BaSO4(5)
CuO+H2SO4-->CuSO4+H2O(1)
CuSO4+2NaOH-->Cu(OH)2+Na2SO4(2)
Cu(OH)2+2HCl-->CuCl2+2H2O(3)
CuCl2+2AgNO3-->Cu(NO3)2+2AgCl(4)
Cu(NO3)2+Mg-->Mg(NO3)2+Cu(5)
\(CuO\underrightarrow{1}CuSO_4\underrightarrow{2}Cu\left(OH\right)_2\underrightarrow{3}CuCl_2\underrightarrow{4}Cu\left(OH\right)_2\)
(1) \(CuO+H_2SO_4\rightarrow CuSO_4+H_2O\)
(2) \(CuSO_4+2NaOH\rightarrow Cu\left(OH\right)_2+Na_2SO_4\)
(3) \(Cu\left(OH\right)_2+2HCl\rightarrow CuCl_2+2H_2O\)
(4) \(CuCl_2+2KOH\rightarrow Cu\left(OH\right)_2+2KCl\)
Chúc bạn học tốt
CuO + H2SO4 --> CuSO4 + H2O
CuSO4+2NaOH->Cu(OH)2+Na2SO4
Cu(OH)2+2HCl->CuCl2+2H2O
CuCl2+2NaOH->2NaCl+Cu(OH)2