
Количество вещества
Authored by Любовь Тыганова
Chemistry
8th - 9th Grade
Used 63+ times

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8 questions
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1.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Какова молярная масса оксида натрия? Запишите число.
2.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Какова молярная масса оксида алюминия? Запишите число.
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Выберите формулу хлорида натрия
NaCl2
NaCl
CuCl
NCl
4.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Какова массовая доля алюминия в оксиде алюминия? Ответ округлите до целых.
5.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Какое количество вещества оксида натрия содержится в 62 г его? Запишите число.
6.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Какова молярная масса оксида серы (IV)? Запишите число.
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Какое количество вещества в кислороде объемом 11,2 л? Запишите число с точностью до десятых.
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