Вычислить массу угля которая подверглась горению , если получино 88 грамм углекислого газа ?

1)All progressive people( fight) for peace.
2)When was the radio( invented)?
3)When was ,,War and Peace,, (written) by Tolstoy?
4)Chemically pure water is never ( met) with in everyday life.
5)Much attention(is paid) to the living condiyion of people in our country.
1)My sister(was invited) to the birthday party by her friend yesterday.
2)More and more houses(are build) in our country from year to year.
3)We( open) the window after every lesson.
4)We(will finish)our experiment in a week.
5)Young trees(were plant)in the street last autumn.
6)I( answered)my brothers letter last week.

“A friend who is far away is sometimes much nearer than one who is at hand.”~ Gibran Khalil Gibran ~
I make friends easily so I have a lot of foreign friend.
But the best of all is only one. He is from Chine. His name is Dean. He was born in Guangdong. He is fifteen. We have known each other for  two years.
He speak English well, so I communicate with  Dean on the Skype  almost every day.  When I  am needing get a  support  he  always gives me kindly
advice.
 Dean have  interests as the same as I have.
We can have some real talks , share some real feelings , discuss some life plans , dreams , studying  problems , secret happiness or sorrow My friend is very friendly, good – natured, sociable, kind, he is always smiling and laughing, he never loses his temper and he always keeps his word.
I think, nowadays it is very important to have  foreign friends,  because you are learning many interesting facts about people from  the another country about their traditions, habits and customs.