Ответы на вопрос:
2hcooh + 2k = 2hcook + h22cu(oh)2 + 2hcooh = 2сo2 + 3h2o + cu 2o 2hcooh + caco3 =(hcoo)2ca+ h2o+ co2hcooh + c3h7oh = hcooc3h7 + h2o
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