16. Solving a chemistry problem
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16. Solving a chemistry problem
305. Redox reactions proceed according to the above schemes. For each reaction, indicate: a) an oxidizing agent and a reducing agent; b) which substance is oxidized, which substance is reduced. Make up electronic equations and, based on them, arrange the coefficients in the reaction equations.
task number Reaction schemes
305 Cr2O3 KNO3 KOH→K2CrO4 KNO2 H2O
HNO3 H2S→H2SO4 NO H2O
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