Предмет: Химия, автор: milkyway74223

5. Усунути постійну жорсткість води можна за допомогою:
А. кип'ятіння;
Б. додавання кальцинованої соди;
В. охолодження;
г. додавання розчину лугу.

Ответы

Автор ответа: k7278762

0

Ответ:

Б.додавання кальцинованої соди;

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Holidays are good for us because they provide us with new interests, new outlets for our energies, a break from work, and, for some, a chance to rest.

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