Алюминий элементінің нейтрон (n) саны

БЖБ-4 7 А

Quiz
•
Chemistry
•
1st Grade
•
Hard
Ersultan Turgunov
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
13
14
27
12
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Na2CO3 молекулалық массасын (Mr) есептеңіздер
85 г/моль
106 г/моль
101 г/моль
98 г/моль
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Кальций оксидінің (CaO) молекулалық массасы
28 г/моль
16 г/моль
40 г/моль
56 г/моль
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Натрий (Na+) сульфатының (SO42-) формуласы
Na2SO4
NaSO4
Na(SO4)2
Na4SO
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Фосфор элементінің электрон (e) саны
30
16
15
31
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Сілтілік металл
Ne
Cl
Ca
Na
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ауадағы оттектің көлемдік үлесі (%)
0,94
0,03
20,95
78
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