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0416反應速率

Authored by 喬 董

Chemistry

8th Grade

Used 1+ times

0416反應速率
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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

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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?

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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

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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

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(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

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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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