У каких веществ постоянная валентность
Химия

Quiz
•
Chemistry
•
2nd - 5th Grade
•
Medium
Ирина Кириллова
Used 163+ times
FREE Resource
18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
кислород
железо
серебро
фосфор
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Валентність Са?
1
2
3
4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Валентність Nа?
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Атомна маса СL?
24
33
35.5
17
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Визначити молярну масу NaOH
25
30
40
45
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Химия изучает...
химические свойства
химические реакции
вещества,их строение,свойства и превращения
строение атома
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Моль-это...
число частиц,содержащихся в 1г любого вещества
1/12 часть массы атома изотопа углерода 12С
единица,которой в химии измеряют количество вещества
число молекул,содержащихся в 22,4 л газа при нормальных условиях
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