7-класс
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Medium
Северус Снейп
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Al2O3 валентность алюминия в данном соединений равна
II
III
I
IV
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Относительная молекулярная масса MgO равна
34
39
40
16
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Продукт, который является источником кальция
молочные продукты
апельсиновый сок
пищевая соль
соленая пища
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Источниками энергии являются
гормоны
минералы
витамины
углеводы
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Макроэлемент в организме
Se
I2
Сa
F2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
нехватка фтора в организме может привести к
заболеваниям зубов
потере памяти
головной боли
слабости
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Валентности Na, Ca, Al равны
II, I, III
I, II, III
III, II, I
III, I, II
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