August 2021 0 5 Report

ОВР.

числа с скобках пишутся справа сверху.
О2+F2 --> O(+1)F(-1)2
Zn+P --> Zn3P2
Ba + O2 --> BaO
Li+H2 --> LiH
K+N2-->K3N
Mg+C-->MgC2
 

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