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a) Fe2O3 + 6HCl -> 2FeCl3 + 3H2O
FeCl3 + 3NaOH -> Fe(OH)3 + 3NaCl
2Fe(OH)3 + 3H2SO4 -> Fe(SO4)3 + 6H2O
b) CuO + HCl -> CuCl2 + H2O
CuCl2 + 2NaOH->Cu(OH)2 + 2NaCl
Cu(OH)2 + H2SO4 -> CuSO4 +2H2O
a) \(Fe_2O_3\underrightarrow{\left(1\right)}FeCl_3\underrightarrow{\left(2\right)}Fe\left(OH\right)_3\underrightarrow{\left(3\right)}Fe\left(SO_{\text{4}}\right)_3\)
\(\left(1\right)2Fe_2O_3+6Cl_2\rightarrow4FeCl_3+3O_2\)
\(\left(2\right)FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\)
\(\left(3\right)PTHH:??\)
b) \(CuO\underrightarrow{\left(1\right)}CuCl_2\underrightarrow{\left(2\right)}Cu\left(OH\right)_2\underrightarrow{\left(3\right)}CuSO_4\)
\(\left(1\right)CuO+2HCl\rightarrow CuCl_2+H_2O\)
\(\left(2\right)CuCl_2+2NaOH\rightarrow Cu\left(OH\right)_2+2NaCl\)
\(\left(3\right)Cu\left(OH\right)_2+H_2SO_4\rightarrow CuSO_4+2H_2O\)
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❗❕
a, \(S+O_2\underrightarrow{t^o}SO_2\)
\(2SO_2+O_2\xrightarrow[V_2O_5]{t^o}2SO_3\)
\(SO_3+H_2O\rightarrow H_2SO_4\)
\(H_2SO_4+2NaOH\rightarrow Na_2SO_4+2H_2O\)
\(Na_2SO_4+BaCl_2\rightarrow2NaCl+BaSO_{4\downarrow}\)
b, \(SO_2+Na_2O\rightarrow Na_2SO_3\)
\(Na_2SO_3+H_2SO_4\rightarrow Na_2SO_4+SO_2+H_2O\)
\(Na_2SO_4+Ba\left(OH\right)_2\rightarrow2NaOH+BaSO_{4\downarrow}\)
\(2NaOH_{\left(dư\right)}+CO_2\rightarrow Na_2CO_3+H_2O\)
c, \(CaO+CO_2\rightarrow CaCO_3\)
\(CaCO_3\underrightarrow{t^o}CaO+CO_2\)
\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)
\(Ca\left(OH\right)_{2\left(dư\right)}+CO_2\rightarrow CaCO_{3\downarrow}+H_2O\)
\(CaCO_3+H_2SO_4\rightarrow CaSO_{4\downarrow}+H_2O+CO_2\)
d, \(2Fe+3Cl_2\underrightarrow{t^o}2FeCl_3\)
\(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_{3\downarrow}+3NaCl\)
\(2Fe\left(OH\right)_3\underrightarrow{t^o}Fe_2O_3+3H_2O\)
\(Fe_2O_3+3H_2SO_{4\left(l\right)}\rightarrow Fe_2\left(SO_4\right)_3+3H_2O\)
\(Fe_2\left(SO_4\right)_3+3BaCl_2\rightarrow2FeCl_3+3BaSO_{4\downarrow}\)
e, \(Fe+2HCl\rightarrow FeCl_2+H_2\)
\(FeCl_2+2AgNO_3\rightarrow Fe\left(NO_3\right)_2+2AgCl_{\downarrow}\)
\(Fe\left(NO_3\right)_2+2NaOH\rightarrow2NaNO_3+Fe\left(OH\right)_{2\downarrow}\)
\(Fe\left(OH\right)_2+H_2SO_4\rightarrow FeSO_4+2H_2O\)
f, \(2Cu+O_2\underrightarrow{t^o}2CuO\)
\(CuO+2HCl\rightarrow CuCl_2+H_2O\)
\(CuCl_2+2NaOH\rightarrow2NaCl+Cu\left(OH\right)_{2\downarrow}\)
\(Cu\left(OH\right)_2\underrightarrow{t^o}CuO+H_2O\)
\(CuO+H_2\underrightarrow{t^o}Cu+H_2O\)
\(Cu+2H_2SO_{4\left(đ\right)}\underrightarrow{t^o}CuSO_4+SO_2+2H_2O\)
g, \(Al_2O_3\underrightarrow{đpnc}2Al+\dfrac{3}{2}O_2\)
\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(AlCl_3+3NaOH\rightarrow3NaCl+Al\left(OH\right)_{3\downarrow}\)
\(2NaCl+2H_2O\xrightarrow[cmn]{đpdd}2NaOH+Cl_2+H_2\)
\(2NaOH+CuSO_4\rightarrow Na_2SO_4+Cu\left(OH\right)_{2\downarrow}\)
Bạn tham khảo nhé!
a, S+O2to→SO2S+O2to→SO2
2SO2+O2to−−−→V2O52SO32SO2+O2→V2O5to2SO3
SO3+H2O→H2SO4SO3+H2O→H2SO4
H2SO4+2NaOH→Na2SO4+2H2OH2SO4+2NaOH→Na2SO4+2H2O
Na2SO4+BaCl2→2NaCl+BaSO4↓Na2SO4+BaCl2→2NaCl+BaSO4↓
b, SO2+Na2O→Na2SO3SO2+Na2O→Na2SO3
Na2SO3+H2SO4→Na2SO4+SO2+H2ONa2SO3+H2SO4→Na2SO4+SO2+H2O
Na2SO4+Ba(OH)2→2NaOH+BaSO4↓Na2SO4+Ba(OH)2→2NaOH+BaSO4↓
2NaOH(dư)+CO2→Na2CO3+H2O2NaOH(dư)+CO2→Na2CO3+H2O
c, CaO+CO2→CaCO3CaO+CO2→CaCO3
CaCO3to→CaO+CO2CaCO3to→CaO+CO2
CaO+H2O→Ca(OH)2CaO+H2O→Ca(OH)2
Ca(OH)2(dư)+CO2→CaCO3↓+H2OCa(OH)2(dư)+CO2→CaCO3↓+H2O
CaCO3+H2SO4→CaSO4↓+H2O+CO2CaCO3+H2SO4→CaSO4↓+H2O+CO2
d, 2Fe+3Cl2to→2FeCl32Fe+3Cl2to→2FeCl3
FeCl3+3NaOH→Fe(OH)3↓+3NaClFeCl3+3NaOH→Fe(OH)3↓+3NaCl
2Fe(OH)3to→Fe2O3+3H2O2Fe(OH)3to→Fe2O3+3H2O
Fe2O3+3H2SO4(l)→Fe2(SO4)3+3H2OFe2O3+3H2SO4(l)→Fe2(SO4)3+3H2O
Fe2(SO4)3+3BaCl2→2FeCl3+3BaSO4↓Fe2(SO4)3+3BaCl2→2FeCl3+3BaSO4↓
e, Fe+2HCl→FeCl2+H2Fe+2HCl→FeCl2+H2
FeCl2+2AgNO3→Fe(NO3)2+2AgCl↓FeCl2+2AgNO3→Fe(NO3)2+2AgCl↓
Fe(NO3)2+2NaOH→2NaNO3+Fe(OH)2↓Fe(NO3)2+2NaOH→2NaNO3+Fe(OH)2↓
Fe(OH)2+H2SO4→FeSO4+2H2OFe(OH)2+H2SO4→FeSO4+2H2O
f, 2Cu+O2to→2CuO2Cu+O2to→2CuO
CuO+2HCl→CuCl2+H2OCuO+2HCl→CuCl2+H2O
CuCl2+2NaOH→2NaCl+Cu(OH)2↓CuCl2+2NaOH→2NaCl+Cu(OH)2↓
Cu(OH)2to→CuO+H2OCu(OH)2to→CuO+H2O
CuO+H2to→Cu+H2OCuO+H2to→Cu+H2O
Cu+2H2SO4(đ)to→CuSO4+SO2+2H2OCu+2H2SO4(đ)to→CuSO4+SO2+2H2O
g, Al2O3đpnc−−−→2Al+32O2Al2O3đpnc→2Al+32O2
2Al+6HCl→2AlCl3+3H22Al+6HCl→2AlCl3+3H2
AlCl3+3NaOH→3NaCl+Al(OH)3↓AlCl3+3NaOH→3NaCl+Al(OH)3↓
2NaCl+2H2Ođpdd−−−→cmn2NaOH+Cl2+H22NaCl+2H2O→cmnđpdd2NaOH+Cl2+H2
2NaOH+CuSO4→Na2SO4+Cu(OH)2↓
a, S + O2 \(\rightarrow\) SO2
2SO2 + O2 \(\rightarrow\) 2SO3
SO3 + H2O \(\rightarrow\) H2SO4
H2SO4 + Na2O \(\rightarrow\) Na2SO4 + H2O
Na2SO4 + Ba(OH)2 \(\rightarrow\)2NaOH + BaSO4
b, SO2 + Na2O \(\rightarrow\) Na2SO3
Na2SO3 + H2SO4 \(\rightarrow\) Na2SO4 + SO2 + H2O
Na2SO4 + Ba(OH)2 \(\rightarrow\)2NaOH + BaSO4
2NaOH + H2SO3 \(\rightarrow\) Na2SO3 + H2O
c, CaO + CO2 \(\rightarrow\) CaCO3
CaCO3 \(\rightarrow\) CaO + CO2
CaO + H2O \(\rightarrow\) Ca(OH)2
Ca(OH)2 + CO2 \(\rightarrow\) CaCO3 + H2O
CaCO3 + H2SO4 \(\rightarrow\) CaSO4 + CO2 + H2O
d, 2Fe + 3Cl2 \(\rightarrow\) 2FeCl3
FeCl3 +3NaOH \(\rightarrow\) Fe(OH)3 + 3NaCl
2Fe(OH)3 \(\rightarrow\) Fe2O3 +3H2O
Fe2O3 +3H2SO4\(\rightarrow\) Fe2(SO4)3 +3H2O
Fe2(SO4)3 +3BaCl2 \(\rightarrow\)2FeCl3 +3BaSO4
e, Fe +2HCl \(\rightarrow\) FeCl2 + H2
FeCl2 +2AgNO3 \(\rightarrow\) Fe(NO3)2 +2AgCl
Fe(NO3)2 +2NaOH \(\rightarrow\) Fe(OH)2 +2NaNO3
Fe(OH)2 \(\rightarrow\) FeO + H2O
FeO + H2SO4 \(\rightarrow\) FeSO4 + H2O
f, 2Cu + O2 \(\rightarrow\) 2CuO
CuO +2HCl \(\rightarrow\) CuCl2 + H2O
CuCl2 +2NaOH \(\rightarrow\) Cu(OH)2 +2NaCl
Cu(OH)2 \(\rightarrow\) CuO + H2O
CuO + CO \(\rightarrow\) Cu + CO2
Cu + AgSO4 \(\rightarrow\) CuSO4 + Ag
g,2Al2O3 \(\rightarrow\)4Al + 3O2
2Al + 6HCl \(\rightarrow\) 2AlCl3 + 3H2
AlCl3 +3NaOH \(\rightarrow\) Al(OH)3 +3NaCl
2NaCl + 2H2O \(\rightarrow\) 2NaOH + Cl2 + H2
2NaOH +CuCl2 \(\rightarrow\) Cu(OH)2 +2NaCl
c) 4FeS2+ 11O2--->8SO2 +2Fe2O3
Fe2O3+3H2--->2Fe+3H2O
2Fe +6HCl--->2FeCl3 +3H2
FeCl3+3NaOH--->Fe(OH)3+ 3NaCl
2Fe(OH)3 +3H2SO4---->Fe2(SO4)3 +3H2O
d)2 Fe +6HCl-->2FeCl3+3H2
FeCl3 + 3NaOH--->Fe(OH)3 +3NaCl
2Fe(OH)3 --->Fe2O3 +3H2O
e) Fe +2HCl---.FeCl2 +H2
FeCl2+2NaOH---->Fe(OH)2 +2NaCl
Fe(OH)2 +2AgNO3---> Fe(NO3)2 +2AgOH
Chúc bạn học tốt
Nhớ tích cho mình nhé
a) 4K+ O2--->2K2O
K2O+H2O-------->.2KOH
KOH+ NaCO3--->K2CO3+NaOH
K2CO3+2HCl---->2KCl+H20+CO2
B) 2Cu+O2---->2CuO
CuO+H2SO4---->CuSO4+ H2O
CuSO4+ 2NaOH--->Cu(OH)2 +Na2SO4
Cu(OH)2----->CuO+H2O
2CuO--->2Cu+O2
Chúc bn học tốt