Тренировка- среда, 27.11.24
11th Grade
•10 Qs
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Тренировка- среда, 27.11.24
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
Наталья Германович
Used 4+ times
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10 questions
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1.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Рассчитать молекулярную массу тристеарина
2.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Рассчитать молекулярную массу сульфата железа (III)
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Рассчитать молекулярную массу сульфата железа (III)
4.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Рассчитать массовую долю кислорода в кристаллогидрате CuSO4·5H2O. Ответ - с точностью до десятых.
5.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Определить объем кислорода, необходимый для сгорания метана, если количество вещества метана составляет 2 моль. Ответ - только цифра с точностью до десятых
6.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Рассчитать теплоту, выделяемую при сгорании 8 г CH4, если тепловой эффект реакции равна 890 кДж/моль. Ответ - только цифра
7.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Определить число атомов в простейшей формуле соединения с массовым составом: 40% углерода, 6.7% водорода и 53.3% кислорода
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