
аппр
Quiz
•
Chemistry
•
KG
•
Practice Problem
•
Medium
kferhfurhfu gergher
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54 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какое из следующих соединений является оксидом металла?
CO₂
SO₃
Al₂O₃
H₂O
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какое из веществ является кислотой?
NaOH
HCl
NaCl
NH₃
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите продукт реакции между натрием и водой
NaOH
NaCl
H₂
Na₂O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой из металлов является активным восстановителем?
Cu
Ag
Fe
K
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В каком из веществ атом кислорода имеет степень окисления -2?
O₂
H₂O
H₂O₂
O₃
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Какой из элементов реагирует с кислородом с образованием оксида типа MO₂?
Азот
Магний
Кальций
Молибден
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какую формулу имеет сульфат меди(II)?
CuSO₃
Cu₂SO₄
CuSO₄
Cu₂O
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