1. Расставьте коэффициенты в предложенных схемах реакций

2. H2O = H2 + O2

3. Na2O + H2O = NaOH

4. CO + O2 = CO2

5. SO2 + O2 = SO3

6. NH4NO3 = N2O + H2O

7. KClO3 = KCl + O2

8. (NH4)2Cr2O7 = N2 + Cr2O3+ H2O

9. Ca + O2= CaO

10. Mg + CuO = MgO + Cu

11. CaO + P2O5 = Ca3(PO4)2

12. H2SO4+ Al = H2 + Al2(SO4)3

13. Zn + FeCl3 = ZnCl2 + Fe

14. K + O2 =K2O2

15. Cu(NO3)2= CuO + NO2+O2

16. FeBr3 + Cl2= FeCl3 + Br2

17. NaOH + H3PO4 = Na3PO4 + H2O

18. NO2 + O2 + H2O = HNO3

19. Al+ C = Al4C3

20. Al2 (SO4)3 + Mg = MgSO4 + Al

21. KMnO4 = K2MnO2 + MnO2 +O2

22. Fe + O2 + H2O = Fe(OH)2

23. AgNO3 + Al = Ag + Al(NO3)3

24. Fe(NO3)3 = Fe2O3 + NO2 + O2

25. P + O2 = P2O3

26. CaCl2 + AgNO3 = CaNO3 + AgCl

27. Mg + H2SO4 = MgSO4 + H2

28. KClO3 = KCl + KClO4

29. P4 + Cl2 = PCl5

30. K + H2O = KOH + H2

31. NaNO3 = NaNO2 + O2

32. Na2SO4 + BaCl2 = NaCl + BaSO4

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