Ответы на вопрос:
Cao + 3c = cac2 + co cac2 + 2hoh = ca(oh)2 + c2h2 c2h2 + hoh (hgso4) = ch3coh ch3coh + ag2o = ch3cooh + 2ag 2ch3cooh + ca = (ch3coo)2ca + h2
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