November 2021 1 19 Report

ЧИСЛО АТОМОВ ФТОРА В 5.6 Л ГАЗООБРАЗНОГО ФТОРА (Н.У.) РАВНО: 

1) 1.5×10^23 2) 3.01×10^23 3) 6.02×10^23 4) 2.4×10^23 С РЕШЕНИЕМ! СПАСИБО.

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