Валентность и формулы соединений
Quiz
•
Chemistry
•
7th Grade
•
Hard
Альбина Самигуллина
Used 23+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Что такое валентность элемента?
Валентность элемента - это его масса в граммах.
Валентность элемента - это количество протонов в ядре.
Валентность элемента - это его температура плавления.
Валентность элемента - это способность атома образовывать химические связи, определяемая количеством валентных электронов.
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Какова валентность водорода?
0
1
3
2
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Составьте формулу оксида магния.
MgO
MgO2
Mgo
Mg2O
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Какова валентность кислорода в соединениях?
1
3
4
2
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Составьте формулу серной кислоты.
H2SO4
H2SO3
H2S2O8
H2SO2
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Какова валентность натрия?
2
3
4
1
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Составьте формулу хлорида натрия.
CaCl2
KCl
NaCl
NaBr
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