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)

(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)

\(4Na+O2-^{t0}->2Na2O\)

\(Na2O+H2O->2NaOH\)

\(2NaOH+CO2->Na2CO3+H2O\)

\(Na2CO3+H2SO4->Na2SO4+CO2\uparrow+H2O\)

\(Na2SO4+BaCl2->2NaCl+BaSO4\downarrow\)

\(2NaCl+2H2O-\xrightarrow[có-màng-ngăn]{đpdd}2NaOH+Cl2\uparrow+H2\uparrow\)

\(3NaOH+H3PO4->Na3PO4+3H2O\)

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❗❕

o bít

loạn mắt

Chán quá nhiều vậy

1. \(2Al + H_2SO_4 \rightarrow Al_2(SO_4) + H_2\)

3. \(Mg(OH)_2 + 2HCl \rightarrow MgCl_2 + 2H_2O\)

4. \(Fe_2O_3 + 3H_2 \rightarrow2Fe + 3H_2O\)

5. \(CuSO_4 + BaCl_2 \rightarrow BaSO_4 + CuCl_2 \)

6. \(Fe(OH)_2 + 2HCl \rightarrow FeCl_2+ 2H_2O\)

7. \(4K+O_2\rightarrow2K_2O\)

9. \(2Al+3Cl_2\rightarrow2AlCl_3\)

10. \(K_2SO_4 + Ba(OH)_2 \rightarrow BaSO4 + 2KOH\)

Còn 2 câu còn lại bạn xem lại đề nhé.

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