Железо
9th Grade
•11 Qs
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Железо
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Medium
Эстетика жизни
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11 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Элемент Fe располагается в ПСХЭ (группа, период, подгруппа)
IV, 6, главная
VIII, 4, побочная
IV, 8, побочная
III, 4, побочная
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Напишите количество электронов железа на ВНЕШНЕМ уровне
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Атом железа имеет следующее число электронных уровней:
4
6
8
3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Железо относится:
к s-элементам
к р-элементам
к d-элементам
к f-элементам
5.
FILL IN THE BLANK QUESTION
2 mins • 2 pts
Сумма коэффициентов в уравнении реакции :
Fe +Cl2 = FeCl3
Введите число
6.
FILL IN THE BLANK QUESTION
2 mins • 2 pts
Сумма коэффициентов в уравнении реакции :
Fe +H2O = Fe3O4 +H2
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
В каком из веществ степень окисления железа +3 ?
FeSO4
Fe2(SO4)3
FeO
FeS
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