C H
81.8÷12=6.816
18.2÷1=18.2
(6.816:18.2)÷6.816=(1:2.67)×3=3:8
C3H8
2ой способ
22×2(Н2)=44
С3Н8=44
Ответ:С3Н8
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C H
81.8÷12=6.816
18.2÷1=18.2
(6.816:18.2)÷6.816=(1:2.67)×3=3:8
C3H8
2ой способ
22×2(Н2)=44
С3Н8=44
Ответ:С3Н8