水分子的组成
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Chin Tay
Used 10+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
电解水过程中水分子被破坏。
是
非
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
因为电解水生成氧气和氢气，所以说“水由氧气和氢气”组成。
是
非
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
水由氢和氧组成。
是
非
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
水分子由氢原子和氧原子构成。
是
非
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
氢气由氢气分子构成的。
是
非
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
能使带余烬的木条复燃的气体是（ )。
氢气
电解水实验中，与电源正极相连的电极上
产生的气体
空气
电解水实验中，与电源负极相连的电极上
产生的气体
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5个水分子中含有的氢原子和氧原子个数分别是（ ）。
10个氢原子和5个氧原子
5个氢原子和10个氧原子
5个氢原子和5个氧原子
2个氢原子和1个氧原子
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