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9 класс
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Medium
Rustem Ukassov
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Продуктами реакции между натрием и водой являются...
Гидроксид натрия и оксид натрия
Оксид натрия и водород
Гидроксид натрия и водород
Только гидроксид натрия
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Восстановительная активность какого металла из указанных наименьшая?
Fe
Zn
Na
Cu
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите продукты реакции CuSO4 + Zn →
ZnSO4
CuO + ZnSO4
ZnSO4 + Cu
ZnS + CuO
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
При взаимодействии железа с соляной кислотой выделяется:
Хлор
Кислород
Аргон
Водород
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите НЕхарактерное для металлов физическое свойство:
Хорошая электропроводность
Хорошая теплопроводность
Хрупкость
Всё вышеперечисленное верно
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Самопроизвольное разрушение металлов и сплавов под воздействием окружающей среды называют...
Нейтрализацией
Коррозией
Катализом
Верного ответа нет
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой из металлов взаимодействует с кислородом только при нагревании?
Zn
Na
Li
Ca
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