
Химия 2.0
Authored by Диана Саетгареева
Chemistry
2nd - 5th Grade
Used 78+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
В промышленности кислород получают из:
хлората калия
воды
воздуха
перманганата калия
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ученый, получивший кислород и первый описавший это:
Дж. Дальтон
Г. Кавендиш
Дж. Пристли
А. Лавуазье
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Для горения вещества необходим доступ:
водорода
кислорода
алюминия
кремния
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
В воздухе кислорода по объёму:
78%
2%
21%
23%
5.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Для получения кислорода используют (2 ответа):
MnO2
KMnO4
CuO
К2O
H2O2
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Если водород среагирует с кислородом, получится:
воздух
метан
вода
углекислый газ
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Простое вещество кислород состоит из двухатомных молекул с:
ионной связью
металлической связью
ковалентной полярной связью
ковалентной неполярной связью
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