a: \(Cu+H_2SO_4->CuSO_4+H_2\)

\(CuSO_4+BaCl_2->CuCl_2+BaSO_4\)

\(2CuCl_2+O_2->2CuO+2Cl_2\)

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

C.

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 Al₂O₃

(2) Al₂O₃ + 6HCl → 2AlCl₃ + 3H₂O

(3) Al(NO₃)₃ + 3NaOH (vừa đủ) → 3NaNO₃ + Al (OH)₃

(4) 2Al(OH)₃ Al₂O₃+ ЗН₂О

(5) 2Al₂O₃ 4Al + 3O₂

(6) 2Al + 3Cl₂ 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 +H_2↑

(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) Fe+Cl-->FeCl3

FeCl3+NaOH-->Fe(OH)3+NaCl

Fe(OH)3--> Fe2O3+H2O

Fe2O3+CO--> Fe+Co2

b)

Fe+HCl->Fecl2 +H2

FeCl2+Cl->FeCl3

FeCl3+AgNo3-> Fe(No3)3+AgCl

Fe(OH)3-> Fe2O3+ H2O

Fe2O3+CO->Fe+ CO2

c) Al+O2->Al2O3

Al2O3+ HCl-> AlCl3+H2

AlCl3+NaOH->Al(OH)3+NACl

Al(OH)3--> Al2O3+H2O

Al2O3+Co--> Al+Co2

Al+ HCl->AlCl3+H2

d) S+O2-> SO2

So2+O2->So3

So3+O2->So4

So4+H2O->H2So4+Oh

H2So4+NaOH->Na2SO4+H2O

Na2So4+BaCl--> NaCl+BaSO4

e) Cu(OH)2-> CuO+H2O

CuO+H2SO4-> CuSo4+H2

CuSO4+HCl-> CuCl2+H2So4

CuCl2+HNO3-> Cu(NO3)2+HCl

Cu(NO3)2+H2O->Cu+ HNO3+O2

Cu+ O2-> Cuo

Bạn ghi ko rõ ràng( dấu cộng ko có, mũ thì không rõ là ở đâu, ít nhất bạn ghi mũ 3 như ^3)

Nói chung là bạn gửi lại cho mình để mình làm cho, nhớ ghi rõ ra nhé

o bít

loạn mắt

Chán quá nhiều vậy

a) 2Fe+3Cl2--->2FeCl3

FeCl3+3NaOH--->3NaCl+Fe(OH)3

3Fe(OH)3-->Fe2O3+3H2O

Fe2O3+H2---->2Fe+3H2O

Fe+H2SO4---->FeSO4+H2

FeSO4+BaCl2---->FeCl2+BaSO4

b) Fe+2HCl--->FeCl2+H2

FeCl2+AgNO3--->2AgCl+Fe(NO3)2

Fe(NO3)2+2NaOH--->2NaNO3+Fe(OH)2

Fe(OH)2+Na2SO4--->2NaOH+FeSO4

FeSO4+Zn----->ZnSO4+Fe

Fe+.....Ko biết

c)4 Al+3O2--->2Al2O3

Al2O3+3H2SO4--->Al2(SO4)3+3H2O

Al2(SO4)3+3BaCl2---->2AlCl3+3BaCl2

Alcl3+3NaOH--->Al(OH)3+3NaCl

2Al(OH)3--->Al2O3+3H2O

2Al2O3--->4Al+3O2

a) 2Fe+3Cl2--->2FeCl3

FeCl3+3NaOH--->3NaCl+Fe(OH)3

3Fe(OH)3-->Fe2O3+3H2O

Fe2O3+H2---->2Fe+3H2O

Fe+H2SO4---->FeSO4+H2

FeSO4+BaCl2---->FeCl2+BaSO4

b) Fe+2HCl--->FeCl2+H2

FeCl2+AgNO3--->2AgCl+Fe(NO3)2

Fe(NO3)2+2NaOH--->2NaNO3+Fe(OH)2

Fe(OH)2+Na2SO4--->2NaOH+FeSO4

FeSO4+Zn----->ZnSO4+Fe

ko có PTHH

c)4 Al+3O2--->2Al2O3

Al2O3+3H2SO4--->Al2(SO4)3+3H2O

Al2(SO4)3+3BaCl2---->2AlCl3+3BaCl2

Alcl3+3NaOH--->Al(OH)3+3NaCl

2Al(OH)3--->Al2O3+3H2O

2Al2O3--->4Al+3O2