Валентность 8 класс
8th Grade
•10 Qs
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Валентность 8 класс
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
Эльвира kereselidze.elvira@yandex.ru
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой из химических элементов имеет постоянную валентность?
Na
Cu
Fe
Mn
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой из химических элементов имеет постоянную валентность?
Br
C
K
S
Si
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой из химических элементов имеет постоянную валентность III?
Ca
F
S
Al
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какую валентность проявляет фтор?
I
II
III
IV
V
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какую валентность проявляет магний?
I
II
III
IV
V
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какую валентность проявляет водород?
I
II
III
IV
V
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как называется вещество NaBr
хлорид натрия
бромид натрия
бромит натрия
натрия бром
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