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Визначте тип зв’язку в речовині та ступінь окиснення елементів: Fe, KCl, Cl2O7, P, Na, SiO2 ДАЮ 96 БАЛОВ
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Ответ:
Объяснение:
Ионная связь: KCl, Na2S, K2O, CaCl2, MgO, ZnO, NaBr.
Ковалентная полярная: NH3, HCl, H2O, CO2, SiO2.
Ковалентная НЕПОЛЯРНАЯ: Cl2, N2, O2, Br2.
Металлическая: Al, Cu, Fe, Ag.
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Автор:
guyp9qm - 2 года назад
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объясните пожалуйста( если можно можно дано и решением
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santiago77 - 2 года назад
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Imagine that you are Tom and retell the event which happened to you in 6 sentences.
Text for Listening
Tom’s First Royal Dinner
After “The Prince and the Pauper” by Mark Twain
Once Tom, a boy from a very poor family, met the Prince. They looked at each other and saw that they were very much alike. So the boys decided to exchange their lives for some time: the Prince went to Tom’s Family and Tom went to the Royal family.
So, one day at about one o’clock Tom was dressed for dinner. Then he was taken to a large room, where a table for one person was ready.
The room was full of people.
All of them knew that the Prince was mad and that they had not to show any surprise if he did anything strange.
Poor Tom ate with his fingers, but no one smiled. He looked at his napkin with great interest, and then said:
“Please take it away; I’m afraid it will become dirty”. The napkin was taken away without a word of protest.
When he finished his dessert, he filled his pockets with nuts, but nobody paid any attention to that either.
Suddenly his nose began to inch. He looked first at one then at another of the lords near him. They ran up to him and asked what the matter was. Tom said with tears in his eyes:
“My nose is itching terribly. What shall I do?” Nobody smiled; nobody knew how to help him.
Tears began to run down his cheeks; at last he begged pardon of the people standing around him and scratched his nose himself.
Nobody smiled, but all were sorry for the prince.
At last our small friend was led to his cabinet and was left alone. Then he remembered the nuts. He took them out of his pockets and soon was cracking them and feeling almost happy for the first time since he became a prince.
When the nuts were all eaten up, he found some books in a book case, among them one about the etiquette of the English court. He lay down upon a sofa and began to read it.
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Предмет:
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Автор:
quintin99 - 2 года назад
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