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СРОЧНО!
Составьте формулу сложных веществ состоящих из следующих хим. элементов.
А.) кальция и хлора
Б.) фосфора (3) и водорода
В.) водорода и серы
Г.) серебра и кислорода
Ответы 2
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2Al +3 S = Al2S3 - соединения, Zn + 2HCI = ZnCl2 + H2 - замещения, 2Au2O3 = 4Au +3 O2 - разложения
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Автор:
skipperocng - 5 лет назад
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0
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CaCl2 - хлорид кальция PH3 - фосфинH2S - сульфид водородаAgO - оксид серебра
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Автор:
kody - 5 лет назад
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0
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