При обработке образца латуни массой 10 г., состоящей из меди и цинка, избытком соляной кислоты выделился водород объемом 1,12 л(н.у.) Опредделите массовую долю цинка в этом образце

Какова роль Распутина в русской истории?

5(d-c) во 2 степени +10dc помогите пожалуйста

начерти прямоугольник со сторонами 1дм и 1см Найди его площадь и периметр

Work in pairs.Use this information to make up phone dialogues.

1.(Anna-Kate) Anna is calling Kate to invite her to her birthday party.Kate answers the phone.She is very happy about the party and promises to come.

2.(Mary-John' mother) Mary is calling her classmate John to tell him that instead of Maths they are going to have Literature tomorrow.But John is out.His mother answers the phone.

3.(Jane Grey's mother-school director) Jane's mother is calling the director to tell him that Jane is ill.The director's secretary answers the phone.She says the director is talking to somebody else.The secretary asks Jane's mother to call back.