July 2022 2 9 Report

Определите правильно ли расставлены коэффициенты в уравнениях

а)2Mg +O2->MgO

б)2FeCl+Cl->2FeCL3

 

в)2MgCO3->2Mg+2CO

г) 3Na+2NaOH+H2

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