July 2022 1 4 Report

Напишите уравнение реакций, с помощью которых можно осуществить превращения
1) Ca CaO Ca(OH)2 CaCO3
2) As As2O5 H3AsO4 Na3AsO4
3) Fe Fe2O3 ? Fe(OH)3 Fe (NO3)3
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