Question

Lập phương thức hóa học.

1. \(P+O_2\rightarrow P_2O_5\)

2. \(N_2+H_2\rightarrow NH_3\)

3. \(Al+HCl\rightarrow AlCl_2+H_2\)

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

5. \(Fe_2O_3+H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+H_2O\) 6. \(Fe_3O_4+H_2\rightarrow Fe+H_2O\) 7. \(Fe+Cl_2\rightarrow FeCl_3\) 8. \(Al+S\rightarrow Al_2S_3\) 9. \(Al_2O_3\rightarrow Al+O_2\)

Answer 1

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

Answer 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

Answer 3

5)

Answer 4

1. 4P+ 5O2--->2P2O5

2. N2+3H2--->2NH3

3. 2Al+6HCl---->2AlCl3+3H2

4. Fe+2HCl--->FeCl2+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

Answer 5

1.4P+5O₂->2P₂O₅

2.N₂+3H₂->2NH₃

3.(Al+2HCl->AlCl₂+H₂(đề sai Al hóa trị III )

4.Fe+2HCl->FeCl₂+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

Answer 6

1.4

2.

3.2

4.

6.
7.2
8.2
9.2

Answer 7

câu 3 phải là AlCl3 bn ơi

Answer 8

1)4P +5O₂→P₂O₅

2)N₂ + 3H₂ → 2NH₃

3)2Al + 6HCl → 2AlCl₃ + 3H₂

4)