
B4C4練習用
Quiz
•
Chemistry
•
8th Grade
•
Hard
chungtsen chen
Used 2+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
欲研究硫代硫酸鈉與鹽酸的反應速率,觀察下列何項較為方便?
HCl 的消耗量
SO2 的生成量
S 的生成量
NaCl 的生成量
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在 2CrO4 2-(黃色)+2H+ → Cr2O7 2-(橘紅色)+H2O 的平衡反應中,下列敘述何者正確?
達平衡後,[ CrO4 2-]=[ Cr2O7 2-]
達平衡後,正反應速率小於逆反應速率
達平衡後,溶液中[ CrO4 2-]:[ Cr2O7 2-]=2:1
達平衡後,顏色不再變化
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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