
0416反應速率
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
喬 董
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25 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
關於催化劑的敘述,下列哪一項是錯誤的?
(A)催化劑能加快化學反應的活化能
(B)催化劑能增多化學反應的有效碰撞次數
(C)化學反應後催化劑本身的質量及化學性質皆不變
(D)在化學反應中,催化劑皆未參與化學反應
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
如圖所示,童軍老師教同學用竹筷削成火媒棒,這是合乎影響反應速率變因中的哪一項因素?
(A)降低燃點
(B)使竹筷質量增加
(C)增加竹筷總表面積
(D)增加氧氣濃度
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列四支試管內的鐵釘何者最容易生鏽?
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
當可逆反應達成平衡狀態時,下列敘述何者正確?
(A)反應物不再轉變成生成物
(B)反應速率為零
(C)反應物濃度等於生成物濃度
(D)正、逆反應速率相等
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
加入 Na2CO3 溶液,下列敘述何者正確?
(A)平衡往右移動,溶液顏色變深
(B)平衡往左移動,溶液顏色變淡
(C)平衡往右移動,溶液顏色變淡
(D)平衡往左移動,溶液顏色變深
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(甲)加熱;(乙)加壓;(丙)增加 NO2 的量
(A)僅甲
(B)僅甲乙
(C)僅丙
(D)甲乙丙
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
小明取大小略同的等量碳酸鈣固體各加入如表的三支試管中,均勻混合後,三支試管產生氣體的速率為何?
(A)甲=乙=丙
(B)丙>乙>甲
(C)甲>乙>丙
(D)乙>丙>甲
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