g

a,

b,

c,

d, 2

a) \(Zn+2HCl\rightarrow ZnCl_2+H_2\) ( phản ứng thế)
b) \(Fe_2O_3+3CO\rightarrow2Fe+3CO_2\) ( phản ứng thế )
c) \(CaO+H_2O\rightarrow Ca\left(OH\right)_2\) ( phản ứng hóa hợp )
d) \(2KOH+ZnSO_4\rightarrow Zn\left(OH\right)_2+K_2SO_4\) ( phản ứng thế )

a)

b, \(\uparrow\)

c,

d, 2

a)

\(2KClO_3 \xrightarrow{t^o} 2KCl + 3O_2(X)\\ 3O_2 + 4Al \xrightarrow{t^o} 2Al_2O_3(Y)\\ Al_2O_3 + 6HCl \to 2AlCl_3(Z) + 3H_2O\\ AlCl_3 + 3KOH \to Al(OH)_3(T) + 3KCl\\ 2Al(OH)_3 + 3H_2SO_4 \to Al_2(SO_4)_3 + 3H_2O\\ \)

b)

\(2KMnO_4 \xrightarrow{t^o} K_2MnO_4 + MnO_2 + O_2(A)\\ 2H_2 + O_2 \xrightarrow{t^o} 2H_2O\\ 2H_2O + 2Na \to 2NaOH(B) + H_2\\ 2NaOH \xrightarrow{đpnc} Na + O_2 + H_2 CuO + H_2 \xrightarrow{t^o} Cu(C) + H_2O\)

A: O2 B: Al2O3 C: AlCl3 D: Al(OH)3

2KClO3-t^o-->2KCl+3O2

3O2+4Al--->2Al2O3

Al2O3+6HCl--->2AlCl3+3H2O

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

2Al(OH)3+3H2SO4--->Al2(SO4)3+6H2O

b> 2

$KMn{}^{}{}^{}{}^{}Mn{}^{}+Mn{}^{}+{}^{}$

${}^{}+2{}^{}{}^{}2{}^{}O$

${}^{}O+S{}^{}\to {}^{}S{}^{}$

$Fe+{}^{}S{}^{}\to FeS{}^{}+{}^{}$

$2{}^{}+C{}^{}{}^{}$

1. \(4P+5O_2\rightarrow2P_2O_5\)

2. \(N_2+3H_2\rightarrow2NH_3\)

4. \(Fe+2HCl\rightarrow FeCl_2+H_2\)

3. \(2Al+6HCl\rightarrow2AlCl_2+H_2\)

5. \(Fe_2O_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+3H_2O\)

6. \(Fe_3O_4+4H_2\rightarrow3Fe+4H_2O\)

7. \(2Fe+3Cl_2\rightarrow2FeCl_3\)

8. \(2Al+3S\rightarrow Al_2S_3\)

9. \(2Al_2O_3\rightarrow4Al+3O_2\)

1. 4P+5O2→2P2O5

2. N2+3H2→2NH3

4. Fe+2HCl→FeCl2+H2

3. 2Al+6HCl→2AlCl2+H2

5. Fe2O3+3H2SO4→Fe2(SO4)3+3H2O

6. Fe3O4+4H2→3Fe+4H2O

7. 2Fe+3Cl2→2FeCl3

8. 2Al+3S→Al2S3

9. 2Al2O3→4Al+3O2

5)

`Fe + 2HCl -> FeCl_2 + H_2`

`2Na + 2HCl -> 2NaCl + H_2`

`2Al + 6HCl -> 2AlCl_3 + 3H_2`

`2Al(OH)_3 + 3H_2SO_4 -> Al_2(SO_4)_3 + 6H_2O`

Fe + 2HCl → FeCl₂ + H₂
2Na + 2HCl → 2NaCl + H₂
2Al + 6HCl → 2AlCl₃ + 3H₂
2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 6H₂O

\(Fe+2HCl\rightarrow FeCl_2+H_2\)

\(2Na+2HCl\rightarrow2NaCl+H_2\)

\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)

\(2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+6H_2O\)

1. \(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)

2. \(Cu+Cl_2\rightarrow CuCl_2\)

Đề j đâu mà 2 cái pt đầu đã tự cân bằng

3. \(Zn+2HCl\rightarrow ZnCl_2+H_2\)

\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)

\(Cu+Cl_2\rightarrow CuCl_2\)

\(Zn+2HCl\rightarrow ZnCl_2+H_2\)

\(a) P_2O_5 + 3H_2O \to 2H_3PO_4\\ b) Fe_2O_3 + 3H_2 \xrightarrow{t^o} 2F e+ 3H_2O\\ c) Mg + 2HCl \to MgCl_2 + H_2\\d) 2KClO_3 \xrightarrow{t^o} 2KCl + 3O_2\\ e) 2K + 2H_2O \to 2KOH + H_2\\ f) CH_4 + 2O_2 \xrightarrow{t^o} CO_2 + 2H_2O\)

a) 2K + 2H₂O --> 2KOH + H₂ (Phản ứng thế)

b) O₂ + 2H₂ --to--> 2H₂O (Phản ứng hóa hợp)

c) FeO + H₂ --to--> Fe + H₂O (Phản ứng thế)