chemistry

Quiz
•
Other
•
7th Grade
•
Hard
Abukhanova Ainash
Used 46+ times
FREE Resource
18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Химический знак кислорода?
H
N
O
P
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Химический знак водорода?
N
O
H
C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как называются вещества, ускоряющие химическую реакцию?
ингибиторы
катализаторы
адсорбенты
продукты
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Какие вещества входят в состав воздуха?
азот
кислород
углекислый газ
водород
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
. Сколько атомов кислорода содержится в молекуле кислорода?
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какую часть воздуха составляет кислород?
78%
21%
32%
50%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Химически неделимая частица вещества?
молекула
атом
ядро
протоны
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