Question

ОВР (NH)2SO4+Ca(NO2)2=N2+CASO4+H2O

Answer 1

(NH4)2SO4 + Ca(NO2)2 -> 2N2 + CaSO4 + 4H2O
2N(-3) -6e -> N2(0)    1  ок-ие
в-ль
2N(+3) + 6e -> N2(0) 1   в-ие
ок-ль

Answer 2

The chemical equation you provided seems to represent a reaction between ammonium sulfate (NH4)2SO4 and calcium nitrite Ca(NO2)2. The products of this reaction are nitrogen gas (N2), calcium sulfate (CaSO4), and water (H2O).

The balanced chemical equation for this reaction is:

3(NH4)2SO4 + 2Ca(NO2)2 → 3N2 + 2CaSO4 + 4H2O

This balanced equation ensures that there is an equal number of each type of atom on both sides of the equation. If you have any further questions, please, let me know.