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a)
\(Mg\left(OH\right)_2\underrightarrow{t^o}MgO+H_2O\)
\(MgO+H_2SO_4\rightarrow MgSO_4+H_2O\)
\(MgSO_4+BaCl_2\rightarrow BaSO_4\downarrow+MgCl_2\)
\(MgCl_2+2NaOH\rightarrow Mg\left(OH\right)_2\downarrow+2NaCl\)
b)
\(2Al_2O_3\xrightarrow[criolit]{npnc}4Al+3O_2\)
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(AlCl_3+3AgNO_3\rightarrow Al\left(NO_3\right)_3+3AgCl\downarrow\)
\(4Al\left(NO_3\right)_3\underrightarrow{t^o}2Al_2O_3+12NO_2+3O_2\)
\(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
a.
2Al2O3 \(\underrightarrow{t^o}\)4Al + 3O2\(\uparrow\)
Al + 6HNO3 \(\rightarrow\) Al(NO3)3\(\downarrow\) + 3NO2 + 3H2O
Al(NO3)3 + NaOH \(\rightarrow\) Al(OH)3\(\downarrow\) + NaNO3
2Al(OH)3 \(\xrightarrow[criolit]{đpnc}\) Al2O3 + 3H2O
Al2O3 + 3H2SO4 \(\rightarrow\) Al2(SO4)3 + 3H2O
Al2(SO4)3 + 3BaCl2 \(\rightarrow\) 3BaSO4\(\downarrow\) + 2AlCl3
2AlCl3 \(\xrightarrow[criolit]{đpnc}\) 2Al + 3Cl2\(\uparrow\)
2Al + 3CuSO4 \(\rightarrow\) 3Cu + Al2(SO4)3
a)
4Al + 3O2\(\rightarrow\) 2Al2O3
Al2O3 +6HNO3\(\rightarrow\) 2Al(NO3)3 + 3H2O
Al(NO3)3 + 3NaOH \(\rightarrow\)Al(OH)3 + 3NaNO3
2Al(OH)3 \(\underrightarrow{^{to}}\) Al2O3 + 3H2O
Al2O3 +6HCl \(\rightarrow\) 2AlCl3 + 3H2O
AlCl3 không điện phân nóng chảy được \(\rightarrow\) Al2O3 \(\underrightarrow{^{\text{đpnc}}}\)2Al + \(\frac{3}{2}\)O2
b) 2Fe + 3Cl2 \(\rightarrow\) 2FeCl3
FeCl3 + 3NaOH \(\rightarrow\)Fe(OH)3 + 3NaCl
2Fe(OH)3\(\rightarrow\)Fe2O3 + 3H2O
Fe2O3 + 3CO \(\rightarrow\)2Fe + 3CO2
Fe + 2HCl\(\rightarrow\) FeCl2 + 2
FeCl2 + 2AgNO3\(\rightarrow\)Fe(NO3)2 + 2AgCl (thường ra Fe+3 )
c) 2Mg + O2\(\rightarrow\)2MgO
MgO + 2HCl \(\rightarrow\) MgCl2 + H2O
MgCl2 + 2NaOH \(\rightarrow\) Mg(OH)2 + 2NaCl
Mg(OH)2 + H2SO4 \(\rightarrow\)MgSO4 + 2H2O
MgSO4 + BaCl2 \(\rightarrow\) MgCl2 + BaSO4
d) Cu(OH)2\(\underrightarrow{^{to}}\) CuO + H2O
CuO + H2SO4\(\rightarrow\)CuSo4 + H2O
CuSO4 + BaCl2 \(\rightarrow\) BaSO4 + CuCl2
CuCl2 + 2AgNO3 \(\rightarrow\) Cu(NO3)2 + 2AgCl
Fe + Cu(NO3)2\(\rightarrow\) Fe(NO3)2 + Cu
Cu + \(\frac{1}{2}\)O2 \(\rightarrow\) CuO
e) 4Na + O2\(\rightarrow\) 2Na2O
Na2O + H2O \(\rightarrow\) 2NaOH
2NaOH + CO2 \(\rightarrow\)Na2CO3 + H2O
Na2CO3 + H2SO4\(\rightarrow\) Na2SO4 + CO2 + H2O
Na2SO4 + BaCl2 \(\rightarrow\)BaSO4 + 2NaCl
NaCl + AgNO3\(\rightarrow\) AgCl + NaNO3
f) Fe3O4 + 4CO\(\rightarrow\) 3Fe + 4CO2
2Fe + 3Cl2 \(\rightarrow\)2FeCl3
FeCl3 + 3AgNO3 \(\rightarrow\) Fe(NO3)3 +3AgCl
Fe(NO3)3 + 3NaOH \(\rightarrow\) Fe(OH)3 + 3NaNO3
Lần sau đăng tách riêng ra nhé
Nhìn rối mắt lắm
a) Al -> Al2O3-> Al(NO3)3-> Al(OH)3 -> Al2O3 -> AlCl3 -> Al
(1) 2A1 + O2 t0→ Al2O3
(2) Al2O3 + 6HCl → 2AlCl3 + 3H2O
(3) Al(NO3)3 + 3NaOH (vừa đủ) → 3NaNO3 + Al (OH)3
(4) 2Al(OH)3 →t0 Al2O3+ ЗН2О
(5) 2Al2O3 đpnc−−→đpnc 4Al + 3O2
(6) 2Al + 3Cl2 t→t0 2AlCl3
b) Fe -> FeCl3 -> Fe(OH)3 -> Fe2O3-> Fe -> FeCl2 -> Fe(NO3)3
(1) 2Fe + 3Cl2 → 2FeCl3
(2) FeCl3 + 3NaOH → 3NaCl + Fe(OH)3
(3) 2Fe(OH)3 → Fe2O3 + 3H2O
(4) Fe2O3 + H2→ Fe + H2O
(5) 3Fe + 2HCl → 2FeCl2 +H2↑
(6) Fe(NO3)3+3NaOH ➞Fe(OH)3 +3Na(NO3)
dài wá mình trả lời những câu còn lại sau : thông cảm cho mk nha❗❕
(34): MgSO4 + BaCl2 → MgCl2 + BaSO4↓
(35) MgCl2 + 2NaOH → Mg(OH)2↓ + 2NaCl
(36) Mg(OH)2 + 2HCl → MgCl2 + 2H2O
(37) Mg(OH)2 + H2SO4 → MgSO4 + 2H2O
(38) MgSO4 + 2NaOH → Na2SO4 + Mg(OH)2↓
(39) MgSO4 + BaCl2 → BaSO4↓ + MgCl2
(40) CuSO4 + Ba(OH)2 → BaSO4↓ + Cu(OH)2↓
(41) CuSO4 + Fe(OH)2 → FeSO4 + Cu(OH)2↓
(42) Fe2(SO4)3 + 3Cu(OH)2 → 3CuSO4 + 2Fe(OH)3↓
(43) 2FeSO4 + 2H2SO4 → Fe2(SO4)3 + 2H2O + SO2↑
(44) Fe2(SO4)3 + Fe → 3FeSO4
(45) 3FeSO4 + 2Al(OH)3 → Al2(SO4)3 + 3Fe(OH)2↓
(46) FeSO4 + 2NaOH → Na2SO4 + Fe(OH)2↓
(48) Al(OH)3 + NaOH → NaAlO2 + 2H2O
(49) 2NaAlO2 + 3H2O + CO2 → 2Al(OH)3↓ + Na2CO3
(50) CO2 + 3H2O + 2NaAlO2 → 2Al(OH)3↓ + Na2CO3
(51) 4Fe(OH)2 + O2 + 2H2O \(\underrightarrow{to}\) 4Fe(OH)3
(52) 2Fe(OH)3 + 3H2SO4 → Fe2(SO4)3 + 6H2O
34. MgSO4 + BaCl2 -> BaSO4 + MgCl2
35. MgCl2 + 2NaOH -> 2NaCl + Mg(OH)2
1. \(Fe+H_2SO_4\rightarrow FeSO_4+H_2\)
2. \(Zn+H_2SO_4\rightarrow ZnSO_4+H_2\)
3. \(Mg+H_2SO_4\rightarrow MgSO_4+H_2\)
4. \(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
5. \(ZnO+2HNO_3\rightarrow Zn\left(NO_3\right)_2+H_2O\)
6. \(BaO+H_2SO_4\rightarrow BaSO_4+H_2O\)
7. \(Fe\left(OH\right)_3+3HCl\rightarrow FeCl_3+3H_2O\)
8. \(Al\left(OH\right)_3+3HNO_3\rightarrow Al\left(NO_3\right)_3+3H_2O\)
9. \(Ca\left(OH\right)_2+H_2SO_4\rightarrow CaSO_4+2H_2O\)
10. \(Cu\left(OH\right)_2+H_2SO_4\rightarrow CuSO_4+2H_2O\)
b) \(Mg\underrightarrow{1}MgO\underrightarrow{2}MgSO_4\underrightarrow{3}MgCl_2\underrightarrow{4}Mg\left(OH\right)_2\)
(1) \(2Mg+O_2\underrightarrow{t^o}2MgO\)
(2) \(MgO+H_2SO_4\rightarrow MgSO_4+H_2O\)
(3) \(MgSO_4+BaCl_2\rightarrow MgCl_2+BaSO_4\)
(4) \(MgCl_2+2KOH\rightarrow Mg\left(OH\right)_2+2KCl\)
Chúc bạn học tốt
a) \(Al\underrightarrow{1}Al_2O_3\underrightarrow{2}Al_2\left(SO_4\right)_3\underrightarrow{4}AlCl_3\underrightarrow{5}Al\left(OH\right)_3\)
(1) \(2Al+3O_2\underrightarrow{t^o}2Al_2O_3\)
(2) \(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
(3) \(Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow2AlCl_3+3BaSO_4\)
(4) \(AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\)
Chúc bạn học tốt