March 2022 0 5 Report
Каковы массовые соотношения элементов в соединении ZnCO3? Ar(Zn)=65, Ar(C)=12, Ar(O)=16
A) 65:6:54
B) 65:12:48
C)32,5:12:24
D) 32,5:6:48
E) 65:6:48
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