Предмет: Химия, автор: markarkharov65

Составьте формулу оксида натрия, определите молярную массу
*
Na2O, M(Na2O)= 62г/моль
NaO, M(NaO) = 39 г/моль
NaO2, M(NaO2) = 55 г/моль

Ответы

Автор ответа: unezhewaoxnw6u
1

Ответ:

Na2O, M(Na2O)= 62г/моль

Объяснение:

Na2O, M(Na2O)= 2×23+16= 62г/моль

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Footprints in the Jungle by W.S. Maugham

It was in Malaya that I met the Cartwrights. I was staying with a man called Gaze who was head of the police and he came into the billiard-room, where I was sitting, and asked if I would play bridge with them. The Cartwrights were planters and they came to Malaya because it gave their daughter a chance of a little fun. They were very nice people and played a very pleasant game of bridge. I followed Gaze into the cardroom and was introduced to them.
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When we separated, Gaze and I set out to walk to his house.
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"I liked them and their daughter who is just the image of her father."
To my surprise Gaze told me that Cartwright wasn't her father. Mrs. Cartwright was a widow when he married her. Olive was born after her father's death.
And when we came to Gaze's house he told me the Cartwrights' story.
"I've known Mrs. Cartwright for over twenty years," he said slowly. "She was married to a man called Bronson. He was a planter in Selantan. It was a much smaller place than it is now, but they had a jolly little club, and we used to have a very good time. Bronson was a handsome chap. He hadn't much to talk about but tennis, golf and shooting; and I don't suppose he read a book from year's end to year's end. He was about thirty-five when I first knew him, but he had the mind of a boy of eighteen. But he was no fool. He knew his work from A to Z. He was generous with his money and always ready to do anybody a good turn.
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