C4H10+CL2=
CH4+BR2=
C3H8+O2=

 Напишите как читаются слова русскими буквами.                                                                   modern technologies have become an integral part of teenagers life. For example, the internet. It is a great source of information, they use it for communicating with friends, homework and entertainment. Many teenagers know much about computers but their lack of experience can make them forget about the internet dangers and even become victims of on-line crime. Of course, the internet is a great tool for helping teens with their homework. They can find information on any topic. There are even websites where they can get help with their homework. But often the opportunity to get information from the net leads to cheating when pupils just copy someone's papers. Another danger is lack of sleep. Teenagers often get as little as four hours of sleep because they play games or surf the net. As a result, they are not able to work well at school