Составте уравнения реакций горения следущих веществ в кислороде:

а) алюминия; б) натрия; в) сероводорода.

ответьте на вопросы:

What is our national anthem? Who wrote it? Did our country use to have any other national anthem in the last 100 years? What is your favourite Russian pateiotic aong? Why? Is there a song which could be called an unofficial nayional anthem of Russia? Give reasons for and against it.

отвечайте как угодно:)