August 2021 0 11 Report
С помощью каких реакций можно осуществить следующие превращения CaCO3 ->A->  Са(ОН)2 ->Ca(NO3)2 ->Б-> CaCl2 назовите вещества А и Б
и осуществить цепочку превращений (наверху)
   
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