Массовая доля
Quiz
•
Chemistry
•
7th - 12th Grade
•
Hard
tidesi tidesi
Used 14+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Основные компоненты раствора
растворитель и вода
растворенное вещество и вода
растворенное вещество и растворитель
два растворенных вещества
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Формула для расчета массовой доли вещества ?
Нет
Да
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Максимально описать смесь песка с водой
Одноцветная
Гетерогенная
Жидкая
Твердые частицы в жидком
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Однородная смесь, в которой частицы растворенного вещества не различимы — это раствор?
Да
Нет
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Формула растворимого в воде вещества:
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как можно определить массовую долю компонента в смеси:
как долю вещества от долю растоврителя
как долю вещества от всей смеси
как массу вещества, деленную на его объем
как массу всей смеси, деленную на массу вещества
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Как иначе записать 25%?
0,25
0,025
2,5
0,250
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