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C + O2---t*--> CO2
CO2+ CaO--->CaCO3
CaCO3----t*--->CaO+CO2
2NaOH+CO2----->Na2CO3+H2O
Na2CO3 + Ba(OH)2---->2NaOH + BaCO3
2NaOH + Al2O3----->2NaAlO2 + H2O
2Ca + O2 ----.>2CaO
CaO + H2O----->Ca(OH)2
Ca(OH)2 + CO2----->CaCO3 + H2O
CaCO3 + BaCl2----->CaCl2 + BaCO3
Chi?
4Fe+3O2---t*--->2Fe2O3
Fe2O3+ 6HCl------>2FeCl3+3H2O
FeCl3+Al(OH)3------>AlCl3 + Fe(OH)3
AlCl3+3NaOH------>Al(OH)3+3NaCl
2Al(OH)3 ----t*---->Al2O3 + 3H2O
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❗❕
2FeS2+6O2-->Fe2O3+4SO2
2SO2+O2-->2SO3(V2O5,to)
SO3+H2O-->H2SO4
b)2Na+2H2O-->2NaOH+H2
2NaOH+H2SO4-->Na2SO4+2H2O
Na2SO4+Ba(OH)2-->BaSO4+2NaOH
2NaOH+CO2-->Na2CO3+H2O
Na2CO3+2HCl-->2NaCl+H2O+CO2
NaCl+AgNO3-->NaNO3+AgCl
C)
4Al+3O2-->2AL2O3
Al2O3+3H2SO4-->Al2(SO4)3+3H2O
Al2(SO4)3+3Ba(OH)2-->3BaSO4+2Al(OH)3
Al(OH)3+NaOH-->NaAlO2+H2O
NaALO2+H2O+CO2-->Al(OH)3+NaHCO3
Al(OH)3+HCl-->AlCl3+H2O
AlCl3+AgNO3-->Al(NO3)3+AgCl
a) 2FeS2 +11/2O2-----> 4SO2 +Fe2O3
2SO2+O2------> 2SO3
SO3+H2O----- -> H2SO4.
b) 2Na +2H2O-----> 2NaOH+H2
2NaOH+H2SO4----> Na2SO4 +2H2O
Na2SO4+Ba(OH)2----> NaOH +BaSO4
2NaOH+CO2----> Na2CO3+H2O
Na2CO3+2HCl----> 2NaCl+H2O+CO2
NaCl+AgNO3--->NaNO3+AgCl
c) 4Al+3O2--- -> 2Al2O3
Al2O3+3H2SO4 -> Al2(SO4)3+3H2O
Al2(SO4)3+6NaOH-> 2Al(OH)3+3Na2SO4
Al(OH)2+NaOH ----> NaAlO2+2H2O
NaAlO2+2H2O+CO2----> Al(OH)3 +NaHCO3
Al(OH)3+3NaOH----> AlCl3+3NaOH
Alcl3+3AgNO3---> Al(NO3)3+3NaCl
Bạn tự cân bằng các phương trình nhé
Fe+Cl2->FeCl3(đk nhiệt độ)
FeCl3+NaOH->NaCl+Fe(OH)3
Fe(OH)3+H2SO4->Fe2(SO4)3+H2O
Fe(OH)3->Fe2O3+H2O(điều kiện nhiệt độ)
Fe2O3+CO(dư)->Fe+CO2(đk nhiệt độ)
b)Al+Cl2->AlCl3
AlCl3+NaOH(vừa đủ)->Al(OH)3+NaCl
Al(OH)3+H2SO4->Al2(SO4)3+H2O
Al(OH)3->Al2O3+H2O(đk nhiệt độ)
Al2O3->Al+O2(điện phân nóng chảy criolit)
S+O2->SO2(đk nhiệt độ)
SO2+Br2+H2O->H2SO4+HBr
H2SO4+BaO->BaSO4+H2O
H2SO4(đặc)+Cu->CuSO4+SO2+H2O
2AgNO3 + CaCl2 → 2AgCl + Ca(NO3)2
K2SO4 + Ba(OH)2 → BaSO4 + 2KOH
Fe2(SO4)3 + 3Ba(OH)2 → 3BaSO4 + 2Fe(OH)3
Na2CO3 + BaCl2 → BaCO3 + 2NaCl
Ba(HCO3)2 + Na2CO3 → BaCO3 + 2NaHCO3
MgCO3 + K2SO4 ----//---->
Ca(HCO3)2 + 2KOH → CaCO3 + K2CO3 + 2H2O
2NaHSO4 + 2KOH → K2SO4 + Na2SO4 + 2H2O
2KOH + H2SO4 → K2SO4 + 2H2O
Ba(OH)2 + 2HCl → BaCl2 + 2H2O
Fe(OH)2 + 2HCl → FeCl2 + 2H2O
2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O
Na2CO3 + 2HCl → 2NaCl + H2O + CO2
Ca(HCO3)2 + 2HNO3 → Ca(NO3)2 + 2H2O + 2CO2
2NaOH + CuSO4 → Na2SO4 + Cu(OH)2
Ca(OH)2 + BaCl2 ----//---->
Fe2(SO4)3 + 6KOH → 3K2SO4 + 2Fe(OH)3
FeSO4 + Cu(OH)2 ----//---->
a.
2Al +3 H2SO4=> Al2(SO4)3 + 3H2
Al2(SO4)3 + 6NaOH=> 3Na2SO4 + 2Al(OH)3
Al(OH)3 + 3HCl=> AlCl3 + 3H2O
b.
2fe + 3Cl2=>2 FeCl3
FeCl3 +3 NaOH=> 3NaCl + Fe(OH)3
2Fe(OH)3 => Fe2O3 + 3H2O
Fe2O3 + 6HCl=> 2FeCl3 + 3H2O
c.
CaCO3 => CaO + CO2
CaO + H2O=> Ca(OH)2
Ca(OH)2 + 2HCl=> CaCl2 + 2H2O
CaCl2 + 2AgNO3 => 2AgCl+ Ca(NO3)2
4Al + 3O2 \(\underrightarrow{t^o}\) 2Al2O3
Al2O3 + 6HCl -> 2AlCl3 + 3H2O
AlCl3 + 3NaOH -> Al(OH)3 + 3NaCl
2Al(OH)3 \(\underrightarrow{t^o}\) Al2O3 + 3H2O
(1) \(2Al+2NaOH+2H_2O\rightarrow2NaAlO_2+3H_2\uparrow\)
(2) \(NaAlO_2+HCl+H_2O\rightarrow NaCl+Al\left(OH\right)_3\)
\(2Al\left(OH\right)_3+6HCl\rightarrow2AlCl_3+3H_2O\)
(3) \(3Ba\left(OH\right)_2+2AlCl_3\rightarrow3BaCl_2+2Al\left(OH\right)_3\)
\(2Al\left(OH\right)_3+Ba\left(OH\right)_2\rightarrow Ba\left(AlO_2\right)_2+4H_2O\)
(4) \(Ba\left(AlO_2\right)_2+2HCl+2H_2O\rightarrow BaCl_2+2Al\left(OH\right)_3\)