
Общая химия
Authored by Julia Vishnevskaya
Chemistry
11th Grade
Used 16+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите пару элементов с одинаковой электронной конфигурацией внешнего уровня
K и Cr
Ca и Ba
Na и K
Ca и Cr
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите элемент, для которого характерна валентность V
S
N
Cl
H
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите наименее электроотрицательный элемент из предложенных
F
Cl
Mn
Br
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Какое из предложенных веществ имеет самую низкую температуру кипения?
NaCl
SiC
Al
HF
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите кислоту
гидроксид хрома(III)
гидроксид ванадия(V)
гидроксид марганца(II)
гидроксид железа(III)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите тип реакции, характерный для взаимодействия азота и кислорода: N2 + O2 = 2NO
эндотермическая
каталитическая
разложение
гетерогенная
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите сокращенное ионное уравнение для реакции: KOH + HF = KF + H2O
OH- + H+ = H2O
OH- + HF = H2O + F-
K+ + F- = KF
2OH- + 2H+ = 2H2O
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