
Химия/Биология

Quiz
•
Biology, Chemistry
•
1st - 3rd Grade
•
Hard

AINURA ZHUMABEKOVA
Used 18+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Алкенам соответствует общая формула
CnH2n
CnH2n-6
CnH2n+2
CnH2n-2
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Тело человека состоит из воды на:
75-85%
80-90%
100%
50-60%
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Пресная вода составляет в общих мировых запасах:
3%
5%
1%
10%
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Из каких компонентов состоит одна молекула воды?
водород и две молекулы углерода
два атома водорода и один атом кислорода
водород и две молекулы кислорода
два водорода и одна молекула углерода
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Валентность углерода в бутане:
IV и III
IV и II
IV
III
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Укажите органическое вещество:
CO2
CH4
Na2CO3
K3(PO4)2
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