Элементы 2А группы
1st Grade
•11 Qs
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Элементы 2А группы
Quiz
•
Chemistry
•
1st Grade
•
Practice Problem
•
Medium
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11 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Какие элементы 2А группы не являются щелочноземельными.
Mg Ra
Be Mg
Ra Ca
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Сколько в сутки надо употреблять Ca
0,5 г
1,5 кг
1,5 г
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
В какой состав входит Mg
хлорофилла
хлора
металлов
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
элементы 2А группы выступают в реакцию качестве
восстановителя
реактива
Щелочей
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Активные металлы хранят
под ампулой
под слоем керосина
под землей
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Какие элементы из 2А группы устойчивые к воздействию воздуха
Br Mg
Mg Ra
Mg Be
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Во что элементы 2А группы превращается отдавая внешние электроны
в нейтроны с зарядом «2+»
в ионы с зарядом «+»
в ионы с зарядом «2+»
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