Предмет: Химия, автор: wwwmermil11

допоможіть будь ласка!!!
( підручник для 7 класу по хімії Григорович 2015 практична №2 сторінка 52 )
ДАМ 100 БАЛОВ !!!

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Автор ответа: rhfcfdtw

0

Відповідь:

Висновки:

1. В роботі послідовно використані два способи розділення сумішей: фільтрація та випарювання.

2. Фільтрацію застосували, оскільки один з компонентів суміші є розчинним (кухонна сіль), а інший не розчиняється у воді (пісок). Випарювання використали, оскільки розчинник (вода) є леткою речовиною, а розчинена речовина (кухонна сіль) — ні.

Пояснення:

звіт про хід роботи у таблиці

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