при обжиге 0,9 кг пирита получено 768 г оксида серы.вычислить выход продукта реакции

названия Российского государства в разные периоды его существования

2) Выберите нужную форму прилагательного или наречия.

1. I am (happy, happily) to meet you. They have lived all their life (happy, happily). 2. Don't speak to me so (cold, coldly). Your hands are (cold, coldly), put on your gloves. 3. The results of our work were (perfect, perfectly). We have done everything (perfect, perfectly). 4. "I am quite (helpless, helplessly) in solving such problems", she said. She looked at them (helpless, helplessly) not knowing what to do. 5. Can you tell me the (exact, exactly) time of his arrival? Sorry, but I don't know (exact, exactly) when he comes back. 6. He often comes home (late, lately). I haven't seen him (late, lately).