1. В атоме химического элемента Х в основном состоянии электроны распределены по энергетическим уровням следующим образом: 2, 8, 7. Степень окисления Х в высшем оксиде равна:
Степень окисления. Валентность (2)

Quiz
•
Chemistry
•
11th Grade
•
Medium
Снежана Левко
Used 3+ times
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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