August 2022 1 16 Report
установите соостветствие. Ar(O)=16
масса кислорода в одной молекуле соединения
1) 16 а.е.м
2)48 а.е.м
3) 32 а.е.м
формула соединения:
а)SO2
b)SO3
c)P2O3
d)N2O
e)N2O5
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