Химия р
Quiz
•
Chemistry, Science
•
9th Grade
•
Practice Problem
•
Hard
Тоимбек Отыншин
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Восстановительная активность какого металла из указанных наименьшая?
Fe
Zn
Na
Cu
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Самопроизвольное разрушение металлов и сплавов под воздействием окружающей среды называют...
Нейтрализацией
Коррозией
Катализом
Гидролизом
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Укажите продукты реакции CuSO4 + Zn →
ZnSO4
CuO + ZnSO4
ZnSO4 + Cu
ZnS + CuO
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
При взаимодействии железа с соляной кислотой выделяется:
Cl
O
Ar
H
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
В реакции обмена не могут участвовать вещества:
оксиды
простые
сложные
кислоты
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
В молекуле кислорода связь:
Ковалентная неполярная
Ионная
Ковалентная полярная
Металлическая
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Степень окисления азота в ряду NH3 NO N2
Повышается
Сначала повышается, а потом понижается
Понижается
Сначала понижается, а потом повышается
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