Предмет: Химия, автор: 230121comfy

Помогите пожалуйста!!!

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Автор ответа: ss7700778

1

Ответ:1.ω ( речовини ) = m ( речовини ) m ( розчину ) .

2.б

3.мензуркою

4. спочатку масу поділити на молярну масу (m/M=n) дізнаємося кількість речовини, а потім об’єм дорівнює кількість речовини помножити на об‘єм молярний (V=Vm•n) молярний об’єм постійне значення 22,4 г/моль

5.А

6.В

7.Г

8.Б

9.145,5 мл

10.140г солі

Объяснение:№9 : 150г*0,03= 4,5 (гр) - маса солі у розчині150г - 4,5= 145,5 (мл) - маса води у розчині

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When I was growing up, there was an issue at home that made everyone uncomfortable. My Aunt Lola used to call it the shame of our family. It was a dark secret that my relatives didn't like to talk about, although it affected many Mexican-American families just like ours. The source of this embarrassment was the fact that my brothers and I didn't speak Spanish. Worse, we didn't care about speaking Spanish.

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The author says that Spanish is ... language.

Выберите один ответ:

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