August 2021 0 8 Report
Какие из приведенных реакций являются окислительно- востановительными?и почему! 1.K2CrO4+BaCl2=BaCrO4+2KCl
2.Cu+2FeCl=CuCl2+2FeCl2
3.H2SO4+CuO=CuSO4+H2O
4.2KClO3= 3 O2+2KCl
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