Кислород
8th Grade
•10 Qs
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Кислород
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Айжан Сламжанова
FREE Resource
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10 questions
Show all answers
1.
OPEN ENDED QUESTION
3 mins • 1 pt
Какая степень окисления наиболее характерна для кислорода в соединениях?
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Какое соединение образуется при взаимодействии кислорода с натрием при температуре 250-400 ℃ ?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
В каком соединении кислород проявляет положительную степень окисления?
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Какое вещество используется для лабораторного получения кислорода путём разложения в присутствии марганцевого катализатора или сырого картофеля?
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Кто впервые получил кислород в 1774 году при нагревании оксида ртути?
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Почему кислород поддерживает процессы дыхания и горения?
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7.
OPEN ENDED QUESTION
3 mins • 1 pt
Какой оксид может образоваться при недостатке кислорода при сгорании углерода?
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