Кислород
11th Grade
•15 Qs
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Кислород
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
Асемгуль Шагирова
Used 6+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Химический знак кислорода
О2
О
О3
Н2
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Относительная атомная масса (Аr) кислорода:
16
8
32
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Химическая формула кислорода:
О
О2
О3
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Относительная молекулярная масса (Mr) кислорода:
32
16
8
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
В соединениях кислород обычно:
одновалентен
двухвалентен
трёхвалентен
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Укажите правильные физические свойства кислорода:
бесцветный газ, без вкуса и запаха, хорошорастворим в воде.
бесцветный газ, без вкуса с запахом, малорастворим в воде.
бесцветный газ, без вкуса и запаха, малорастворим в воде.
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Основные компоненты воздуха:
азот и кислород
кислород и водород
азот и водород
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