КИСЛОРОД
8th Grade
•19 Qs
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КИСЛОРОД
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Людмила Ряснова
Used 38+ times
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19 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Считается, что чистый кислород впервые получил
Д.И.Менделеев
Д. Пристли
М.В.Ломоносов
К.Бертолле
2.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
ИСТИНА или ЛОЖЬ? Кислород — самый распространённый химический элемент на Земле.
ИСТИНА + ЛОЖЬ -
3.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
ИСТИНА или ЛОЖЬ? Формула ОЗОНА - О3.
ИСТИНА + ЛОЖЬ -
4.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
ИСТИНА или ЛОЖЬ? КВАРЦ, формула которого SiО2 является сложным веществом.
ИСТИНА + ЛОЖЬ -
5.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
ВЫЧИСЛИТЕ ОТНОСИТЕЛЬНУЮ МОЛЕКУЛЯРНУЮ МАССУ КВАРЦА, формула которого SiО2
6.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
ВЫЧИСЛИТЕ МАССОВУЮ ДОЛЮ (%) КИСЛОРОДА В КВАРЦЕ, формула которого SiО2. ОКРУГЛИТЕ ДО ЦЕЛОГО
7.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
НОВОЕ ОПРЕДЕЛЕНИЕ!
КАК НАЗЫВАЮТ В-ВО, УСКОРЯЮЩЕЕ РЕАКЦИЮ?
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