December 2021 0 20 Report
Исправьте ошибки в следующих уравнениях реакций: 1. 2Ca + H2SO4 = CaSO4 + H2 6. HgO = Hg + O2 2. FeCl2 + 3Cl3 = FeCl3 7. 2LiCl + AgNO3 = AgCl + 2LiNO3 3. Na + S = Na2S 8. CuSO4 = CuO + SO2 4. SO3 = 2SO2 + O2 9. 5Sb + 2Cl2 = 5SbCl5 5. 2Cr + 6HCl = 2CrCl3 + 2H2 10. PbO + 2Al = Al2O3 + Pb
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