Question

Расставить коэффициенты в уравнениях реакций: 1.​ SO2 + O2 SO3 2.​ Al(OH)3 Al2O3 + H2O 3.​ FeСl3 + Zn ZnCl2 + Fe 4.​ KOH + HNO3 KNO3 + H2O 5.​ CuO + HCl CuCl2 + H2O 6.​ Cr(OH)3 Cr2O3 + H2O 7.​ CO + O2 CO2 8.​ K + H3PO4 K3PO4 + H2 9.​ MgO + H2SO4 MgSO4 + H2O 10.​ Ba(OH)2 + HNO3 Ba(NO3)2 + H2O 11.​ NaOH + H2SO4 Na2SO4 + H2O 12.​ Fe2O3 + H2 Fe + H2O 13.​ NO + O2 NO2 14.​ FeO + H2SO4 FeSO4 + H2O 15.​ CuOH Cu2O + H2O 16.​ ZnO + HNO3 Zn(NO3)2 + H2O 17.​ Fe(OH)3 Fe2O3 + H2O 18.​ Al + HCl AlCl3 + H2 19.​ HCl + AgNO3 AgCl + HNO3 20.​ N2 + H2 NH3

Answer 1

1. Реакwия соединения  2SO2+O2=2SO3
2  Реакция разложения 2Al(OH)3⇒Al2O3+3H2O
3 Реакция замещения 2FeCl3+3Zn⇒2Fe+3ZnCl2
4 Реакция обмена (нейтрализация)  коэффициенты не нужны
5 Реакция обмена CuO+2HCl⇒CuCl2+H2O

Answer 2

Equations and coefficients:

1. SO2 + O2 → SO3 The coefficients for this equation are already balanced.

2. Al(OH)3 + Al2O3 + H2O → To balance this equation, we need to add coefficients. The balanced equation is: 2 Al(OH)3 + Al2O3 + 3 H2O →

3. FeCl3 + Zn → ZnCl2 + Fe The coefficients for this equation are already balanced.

4. KOH + HNO3 → KNO3 + H2O The coefficients for this equation are already balanced.

5. CuO + HCl → CuCl2 + H2O The coefficients for this equation are already balanced.

6. Cr(OH)3 + Cr2O3 + H2O → To balance this equation, we need to add coefficients. The balanced equation is: 3 Cr(OH)3 + 2 Cr2O3 + 9 H2O →

7. CO + O2 → CO2 The coefficients for this equation are already balanced.

8. K + H3PO4 → K3PO4 + H2 The coefficients for this equation are already balanced.

9. MgO + H2SO4 → MgSO4 + H2O The coefficients for this equation are already balanced.

10. Ba(OH)2 + HNO3 → Ba(NO3)2 + H2O The coefficients for this equation are already balanced.

11. NaOH + H2SO4 → Na2SO4 + H2O The coefficients for this equation are already balanced.

12. Fe2O3 + H2 → Fe + H2O The coefficients for this equation are already balanced.

13. NO + O2 → NO2 The coefficients for this equation are already balanced.

14. FeO + H2SO4 → FeSO4 + H2O The coefficients for this equation are already balanced.

15. CuOH + Cu2O + H2O → To balance this equation, we need to add coefficients. The balanced equation is: 2 CuOH + Cu2O + 3 H2O →

16. ZnO + HNO3 → Zn(NO3)2 + H2O The coefficients for this equation are already balanced.

17. Fe(OH)3 + Fe2O3 + H2O → To balance this equation, we need to add coefficients. The balanced equation is: 3 Fe(OH)3 + 2 Fe2O3 + 9 H2O →

18. Al + HCl → AlCl3 + H2 The coefficients for this equation are already balanced.

19. HCl + AgNO3 → AgCl + HNO3 The coefficients for this equation are already balanced.

20. N2 + H2 → NH3 The coefficients for this equation are already balanced.

Please note that the coefficients provided above are based on the assumption that the equations are balanced. If there are any errors or if you need further clarification, please let me know.