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Электролиз раствора Na2SO4 проводили в течение 5 ч при силе тока 7 А. Составьте электронные уравнения процессов, происходящих на электродах. Какая масса воды при этом разложилась, и чему равен объем газов (н.у.), выделившихся на катоде и аноде?
