
валентность
Authored by ELLARIA ELLARIA
Others
1st - 5th Grade

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как определять валентность у второго элемента в соединении из 2 элементов ?
Валентность кислорода умножаем на его индекс
Валентность кислорода умножаем на индекс , полученное число делим на индекс между элементами
Валентность равна номеру группы
Валентность такая же как и у кислорода
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Определите валентность у железа в FeO
2
1
7
8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Определите валентность у серы в SO2
6
5
2
4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
У кислорода постоянная валентность?
Да
Нет
Да, равна 6
Да , равна 2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
У водорода постоянна валентность ?
Да
Нет
Да , равна 1
Да, равна 7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
У алюминия постоянная валентность ?
Да
Нет
Да , равна 3
Да, равна 2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
У железа постоянная валентность ?
Да
Нет
Да , равна 8
Да , равна 3
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