Задание 14
Authored by Алексей Чепига
Chemistry
7th Grade
Used 2+ times
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5 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Выберите среди этих веществ простые
Железо Fe
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Найдите среди этих реакций 2 реакции замещения
Fe + S → FeS
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Обмен
Соединение
Экзотермическая
Эндотермическая
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Что из этого - гомогенная химическая реакция?
Растворение сахара
Горение природного газа
Растворение кусочка железа в соляной кислоте
Полёт пушечного ядра
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Экзотермическая
Эндотермическая
Это НЕ химическая реакция
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