Химия
Quiz
•
Chemistry
•
1st Grade
•
Practice Problem
•
Hard
Наталья Андреева
Used 261+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Укажите вещество с ионной химической связью:
NaCl
HF
Cl2
C
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Укажите химическое соединение, состоящее из трех химических элементов и восьми атомов:
3S8
Cl2O5
К2MnO4
H3PO4
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Укажите смесь веществ:
Оксид кальция
Серная кислота
Молоко
Железо
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Укажите химическое явление:
Плавление льда
Гниение листьев
Испарение воды
Кристаллизация сахара из раствора
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Укажите простое вещество:
Золото
Вода
Воздух
Оксид кальция
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Вычислите относительную молекулярную массу гидроксида кальция Са(ОН)2:
57
74
58
72
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
«Водород горит». Здесь речь идет о «водороде», как:
О смеси
О сложном веществе
О простом веществе
Об элементе
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