Предмет: Химия, автор: oycku35896

Установите соответствие между химическим элементом и номером группы, в которой он расположен в Периодической системе:​

Приложения:

Ответы

Автор ответа: assserorr
0

Ответ:

.

Объяснение:

кислород - 6а группа, 2 период

углерод - 4а группа, 2 период

фосфор - 5а группа, 3 период

железо - 8б группа, 4 период

хлор - 7а группа, 3 период

водород - 1а группа, 1 период


egorb3000: спасибо за ответ,а то я бы помог,но пока не разбираюсь
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Read the dialogues and choose the correct idiom A–L from the list. Two idioms on the list are extra.
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3. Chris took after his father. The father and his son resemble each other. – That’s it. ………………….
4. I have never seen so many people at the rock festival. – Yes, you’re right. There came …………………… .
5. I can’t learn this poem by heart! I’m going to get a bad mark tomorrow! – Don’t be upset! Keep on learning: ……………… .
6. In every difficult situation, when Brian needs to do something he is forced to find ways how to do it. – It’s quite natural! ……………. .
7. Everybody knows that Jim is greedy and unreliable. He is the least person I’d like to make friends with. – Sure. He is …………….. .
8. Poor Mel! There are so many things that can make her cry. – I can’t but agree with you. She is …………… .
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Варианты ответов:
A. a weak sister
B. founding father
C. I’m not my brother’s keeper
D. Experience is the mother of wisdom.
E. Everybody and his mother
F. Diligence is the mother of good luck.
G. a sob sister
H. Big Brother
I. is tied to his mother’s apron strings.
J. Like father, like son.
K. country cousin
L. Necessity is the mother of invention.

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