Question

Cân bằng phương trình

1.Mg+HCl→MgCl2+H2

2.Al+HCl→AlCl3+H2

3.Fe+H2SO4→Al2(SO4)3+H2

4.Zn+H3PO4→Zn(PO4)2+H2

5.Al+H3PO4→AlPO4+H2

6.Cu+AgNO3→Cu(NO3)2+Ag

7.Al+AgNO3→Al(NO3)3+Ag

8.Al+Fe(NO3)3→Al(NO3)3+Ag

9.Mg+ZnCl2→MgCl2+Zn

10.Zn+FeCl3→ZnCl2+Fe

Answer 1

1) Mg + 2HCl → MgCl₂ + H₂

2) 2Al + 6HCl → 2AlCl₃ + 3H₂

3) 2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂

4) 3Zn + 2H₃PO₄ → Zn₃(PO₄)₂ + 3H₂

5) 2Al + 2H₃PO₄ → 2AlPO₄ + 3H₂

6) Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag

7) Al + 3AgNO₃ → Al(NO₃)₃ + 3Ag

8) Al + Fe(NO₃)₃ → Al(NO₃)₃ + Fe

9) Mg + ZnCl₂ → MgCl₂ + Zn

10) 3Zn + 2FeCl₃ → 3ZnCl₂ + 2Fe

Answer 2

1.Mg+2HCl→MgCl2+H2

2.2Al+6HCl→2AlCl3+3H2

3.2Al+3H2SO4→Al2(SO4)3+3H2

4.Zn+2H3PO4→Zn(PO4)2+3H2

5.2Al+2H3PO4→2AlPO4+3H2

6.Cu+2AgNO3→Cu(NO3)2+2Ag

7.Al+3AgNO3→Al(NO3)3+3Ag

8.Al+Fe(NO3)3→Al(NO3)3+Ag

9.Mg+ZnCl2→MgCl2+Zn

10.3Zn+2FeCl3→3ZnCl2+2Fe

Answer 3

1.Mg+2HCl→MgCl2+H2

2.2Al+6HCl→2AlCl3+3H2

3.2Al+3H2SO4→Al2(SO4)3+3H2

4.Zn+2H3PO4→Zn(PO4)2+3H2

5.2Al+2H3PO4→2AlPO4+3H2

6.Cu+2AgNO3→Cu(NO3)2+2Ag

7.Al+3AgNO3→Al(NO3)3+3Ag

8.Al+Fe(NO3)3→Al(NO3)3+Ag

9.Mg+ZnCl2→MgCl2+Zn

10.3Zn+2FeCl3→3ZnCl2+2Fe

Answer 4

1. Mg + 2HCl → MgCl2 + H2

2. 2Al + 6HCl → 2AlCl3 + 3H2

3. 2Al + 3H2SO4 → Al2(SO4)3 + 3H2

4. 3Zn + 2H3PO4 → Zn3(PO4)2 + 3H2

5. 2Al +2H3PO4 → 2AlPO4 + 3H2

6. Cu + 2AgNO3 → Cu(NO3)2 + 2Ag

7. Al + 3AgNO3 → Al(NO3)3 + 3Ag

8.Al + Fe(NO3)3 → Al(NO3)3 + Fe

9. Mg + ZnCl2 → MgCl2 + Zn

10. 3Zn + 2FeCl3 → 3ZnCl2 + 2Fe

Answer 5

1.Mg+2HCl→MgCl₂+H₂

2.2Al+6HCl→2AlCl₃+3H₂

3.2Al+3H₂SO₄→Al₂(SO₄)₃+3H₂

4.Zn+2H₃PO₄→Zn(PO₄)₂+3H₂

5.2Al+2H₃PO₄→2AlPO₄+3H₂

6.Cu+2AgNO₃→Cu(NO₃)₂+2Ag

7.Al+3AgNO₃→Al(NO₃)₃+3Ag

8.Al+Fe(NO₃)₃→Al(NO₃)₃+Ag

9.Mg+ZnCl₂→MgCl₂+Zn

10.3Zn+2FeCl₃→3ZnCl₂+2Fe

Answer 6

1.Mg+2HCl→MgCl2+H2\(\uparrow\)

2.2Al+6HCl→2AlCl3+3H2\(\uparrow\)

3.2Al+3H2SO4→Al2(SO4)3+3H2\(\uparrow\)

4.3Zn+2H3PO4→Zn₃(PO4)2+3H2\(\uparrow\)

5.2Al+2H3PO4→2AlPO4+3H2\(\uparrow\)

6.Cu+2AgNO3→Cu(NO3)2+2Ag\(\downarrow\)

7.Al+3AgNO3→Al(NO3)3+3Ag\(\downarrow\)

8.Al+Fe(NO3)3→Al(NO3)3+Fe\(\downarrow\)

9.Mg+ZnCl2→MgCl2+Zn\(\downarrow\)

10.3Zn+2FeCl3→3ZnCl2+2Fe\(\downarrow\)