Предмет: Химия, автор: andreydobr200

Визначте елемент за такими даними: має вищу валентність два, відносна молекулярна маса гідрату його вищого оксиду дорівнює 74 СРОЧНО ДАЮ 45 БАЛЛОВ ​

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Автор ответа: dvovk086
0

Відповідь:

Ca(Кальцій).

Формула гідроксиду Са(ОН)2.

Пояснення:

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1. ___ weather in Britain is said to be changeable.
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