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Во время взаимодействия неизвестного галогена с натрием был потрачен метал массой 9,2 г. Определите галоген
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Дано 9,2г метал -?Смотрим в таблице химических элементов. Этот галоген фтор. Только он может быть при взаимодействию с металлами.
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Автор:
aracely - 4 года назад
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7. Fit paragraphs a, b, c, d into the numbered gaps in the text.
a. They were still laughing when they arrived back in the castle. The knight never wore
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Once upon a time there was a knight who, as he grew older, lost all his hair. He
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One day some lords and ladies invited him to go hunting with them, so he, of course
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However, a terrible thing happened.
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How they all laughed at him! At fi rst the poor king felt very foolish, but then he saw
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