Относительная плотность углеводорода по водороду равна 15. Массовая доля углерода в нем 80%. Определить молекулярную формулу, назвать и составить его структурную формулу.

Помогите сочинить стих маме не 8 марта! Начало такое:

С 8 мартом поздровляю,

єто я дочь твоя желаю.

Дашенька твоя любимая,

Ты всегда невообразимая.

√56-2x(под корнем)=6 помогите пожалуйста решить

перевести текст Nina: I am taking this exam tomorrow and i am nervous Andrew: Don't be nervous, you will be fine. You will please the examiners with your English, I am sure. Nina: You are kidding , aren't you? Will they ask me many questions? Andrew: No, I don't think so: just two or three. Nina: Oh! And will I have to read a text and then translate it? Andrew: Yes, that's one of the things everybody does. Nina: And will I write anything? Andrew: I think they will tell you to write some questions on the text. Nina: I see. I hope I will have enough time to write the questions. Andrew: Don't worry , they will give you at least half an hour to get ready. Nina: I am going look through my grammar books this afternoon and practise reading aloud. Andrew: I hope you won't stay up late. You should rest well before the exam. Nina: I will try to. Thanks for your time, Andy. See you. Andrew: See you and the best of luck. Nina: Thanks.

8-9-10 предложений на тему мой друг.какой он