Какой элемент (н.у.) не образует двухатомную молекулу?

Химические Вопросы

Quiz
•
Chemistry
•
11th Grade
•
Hard
Kristall Academy
Used 1+ times
FREE Resource
33 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
углерод
азот
кислород
фтор
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите молярную массу каустической соды (г/моль).
106
286
84
40
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В каком соединении массовая доля углерода составляет 25%?
CaC₂
CH₄
C₃H₄
Al₄C₃
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Определите порядок увеличения полярности связи между следующими элементами: 1) хлор - фтор; 2) бром - фтор; 3) йод - фтор; 4) бром - хлор; 5) йод - хлор; 6) йод - бром;
4,6,5,1,2,3
1,2,3,4,6,5
4,5,6,1,2,3
5,6,4,1,2,3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите электронную конфигурацию Fe³⁺.
[Ar]4s⁰3d⁶
[Ne]3s²3p⁶4s²3d⁶
[Ar]4s²3d³
[Ne]3s²3p⁶3d⁵
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Насколько (г) 6 моль лития легче 3 моль магния?
10
20
30
40
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Если сумма a и b в таблице равна 54, то чему равна сумма n и m?
51
53
55
57
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