43. Решение задачи по химии №004 327

371. The reaction is expressed by the schemes:
CuS HNO3 = Cu(NO3)2 H2SO4 NO2 H2O,
C HNO3,conc = CO2 NO2 H2O.
Write electronic equations. Arrange the coefficients in the reaction equations. For each reaction, indicate which substance is the oxidizing agent, which is the reducing agent; which substance is oxidized and which is reduced.

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