1. В схемах уравнений химических реакций подберите коэффициенты, согласно ЗСМВ:

1. Ba + O2 → BaO 2. Fe3O4 + H2 → Fe + H2O

3. С + H2 → СH4 4. B + O2 → B2O3
5. Al + HCl → AlCl3 + H2 6. Cu + O2 → Cu2O

7. K + S → K2S 8. Mg + N2 → Mg3N2

9. Mg + HCl → MgCl2 + H2 10. Li + N2 → Li3N

11. Al + O2 → Al2O3 12. H2 + N2 → NH3

13. Br2 + H2 → HBr 14. Na + O2 → Na2O2

15. Ba + H2O → Ba(OH)2 + H2 16. CO + O2 → CO2

17. Cr2O3 + Al → Al2O3 + Cr 18. P2O5 + H2O → H3PO4

19. ZnS + O2 → ZnO + SO2 20. NH3 + O2 → NO + H2O
21. Fe + Cl2 → FeCl3 22. Al2(SO4)3 + NaOH → Na2SO4 + Al(OH)3

23. Zn + HCl → ZnCl2 + H2 24. WO3 + C → W + CO2

25. NO + O2 → NO2 26. NaNO3 → NaNO2 + O2
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