Вычислите, какая масса углерода содержится в 90г этана C2H6.

1) I'm meeting a friend tomorrow. 2) Anna is a famous singer 3) Who will cook dinner? 4) Who is going to ride a bike? 5) Where will we live? 6) Where do you fly this summer?

1.I will met friend tomorrow
2.Anna will be famous singer
3.Who will cook dine?
4.