
Проверочный тест 7 класс
Authored by Александра Александра
Chemistry
7th Grade
Used 3+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Из предложенных вариантов химических реакций выберите реакции горения
2Na + O2 = 2Na2O
2Na + 2H2O = 2NaOH + H2
2Li + 2HCl = 2LiCl + H2
2Li + 2H2O = 2LiOH + H2
2.
OPEN ENDED QUESTION
5 mins • 1 pt
Дайте определение "реакции горения - это"
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3.
OPEN ENDED QUESTION
5 mins • 1 pt
Назовите причины загрязнения воздуха
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4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Является ли вода оксидом?
Да
Нет
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой газ выделяется в процессе дыхания
Кислород
Углекислый газ
Азот
Водород
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Правда ли, что во время Первой мировой войны кошек держали в окопах, чтобы они заранее предупреждали о газовой атаке.
Да
Нет
Частично
7.
OPEN ENDED QUESTION
3 mins • 1 pt
Каким символом обозначается элемент "Кадмий"?
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