
Химические расчеты
Authored by Julia Vishnevskaya
Chemistry
11th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Во сколько раз объем 1 моль SO2 больше, чем объем 1 моль O2 при равных условиях?
в 2 раза
в 3 раза
в 0,5 раз
объемы одинаковы
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Сколько моль CO2 содержится в 22 г? (MC = 12 г/моль, MO = 16 г/моль)
2
1/2
0,2
22/28
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
50x + 88 = 100 + 2x, Найдите x
0,25
4
0,4
12
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Чему равна масса воды в 200 г 9%-ного уксуса?
18
91
9
182
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Сколько литров азота в 40 л воздуха? (φN2 = 78%)
0,51
78
21
31,2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2H2 + O2 = 2H2O. Сколько грамм воды получится при полном окислении 2 г водорода?
18
72
36
9
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2H2 + O2 = 2H2O + 484 кДж. Сколько кДж теплоты выделится при образовании 9 мл воды?
121
242
484
968
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