определить массу осадка, если хлорид бария прореагировал с 9,8 г серной кислоты

напишите уравнение химических реакций 

C ---- CH4---------CH3Br---------  C2H6-----------CO2

I _____ running since I was 9 years old. My_____is to compete for Great Britain in the European_____ professional and to become a_____sportsman.

Last year I won the Youing Sportsman of the Year_____. I____hard and_____for_____the 100 matres. I`d like to be an Olympic swimmer one day.I want to win a_____medal.I know it is______to train______and_____if I want to_____my ambition.

I first started playing the piano when I was six.My teacher says that I have musical______.But it is necessary to work a lot if I want to become a_____.

Где ____ вставить слова по смыслу:ability,achieve,ambition,championships,go in for,gold,hard,necessary,professional,properly,set a record,top,try.

треба зробити листа на тему "моє ставлення до навчання" повинні бути обов*язкові слова " by the way, on the onehand, on the other hand, I'd like, As for me, I think, In my opinion. а кінець такким "In conclusion I"d like to say that knoledge is power. Yours Ruslan