July 2022 1 4 Report
Даю 60 балов. Напишіть рівняння хімічних реакцій:

а) Na 2 CO 3 + HNO 3 = ...................в ) FeCl 2 + KOH =

б) CuSO 4 + Fe = ............................ г) Zn(NO 3 ) 2 + Na 2 S =
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