
Алкални елементи и съединенията им
Quiz
•
Chemistry
•
7th Grade
•
Hard
Татяна Николова
Used 6+ times
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Калият НЕ е елемент от:
Алкалната група
I A група
I група
Халогенната група
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
При своите взаимодействия алкалните елементи:
приемат 2 електрона
отдават 2 електрона
приемат 1 електрон
отдават 1 електрон
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Кое уравнение е вярно?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Хигроскопичното действие на натриевата основа се дължи на:
факта, че силно е силно разяждаща
способността и да поглъща влага
факта, че взаимодейства с киселини
на способността на Na да се режи
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Дисоциация означава:
разтварянето на Na
и се получават при разлагане на NaOH
взаимодействието на NaOH + HCl
получаването на сол и вода
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Основите взаимодействата с:
основни оксиди
основи
с водород
с киселинни оксиди
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Хидридите на алкалните елементи са:
NaH, CaH, H2O
NaH, LiH, KH
KH, LiH, CaH
CaH, NaH, LiH
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