Ответ:
Е)
Объяснение:
SiH4
w(H)=4*M(H)*100%/M(SiH4)=4*100%/32=12.5%
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Ответ:
Е)
Объяснение:
SiH4
w(H)=4*M(H)*100%/M(SiH4)=4*100%/32=12.5%