Воздушная оболочка Земли называется:

Вопросы по кислороду

Quiz
•
Chemistry
•
7th Grade
•
Hard
Валида Ахмедова
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
атмосфера
гидросфера
гидросфера атмосфера
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Воздух - это:
сложное вещество
простое вещество
смесь веществ
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Массовая доля кислорода в воздухе составляет:
75,5%
23,15%
75,5%, 23,15%
28%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Название «кислород» элементу дал ученый:
К. Шееле
Дж. Пристли
А.Лавуазье
Р.Бойль
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Молекула озона состоит из:
2 атомов кислорода
3 атомов кислорода
2 атомов азота
1 атома озона
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выберите неверно записанное уравнение реакции:
S+ O2 = 2SO2
2C + 3O2 = 2CO3
CH4+ 2O2 = CO2 + 2H2O
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Кислород взаимодействует:
только с простыми веществами
только со сложными веществами
и с простыми и со сложными веществами
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