chem
Authored by ch ch
Science
7th Grade
Used 2+ times
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20 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
У какого элемента одинаковое число электронов, протонов и нейтронов?
Кислород
Хлор
Сера
Фтор
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Натрий
Na
K
Ba
Ni
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Li
Натрий
Литий
Кальций
Лакмус
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
16
Кислород
Сера
Иридий
Золото
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой это химический элемент?
Na
Au
C
Ag
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой это химический элемент?
Na
Au
C
Ag
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой это химический элемент?
Cu
Ba
Na
Ag
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