
南一國中自然2下_ch4-2

Quiz
•
Science
•
8th Grade
•
Hard
南一 自然
Used 12+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關雙氧水與二氧化錳產生氧氣的實驗,下列哪一項解釋是正確的?
二氧化錳是反應物
二氧化錳是催化劑
二氧化錳可放出氧
雙氧水是催化劑
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關催化劑的性質,下列敘述何者正確?
沒有參與反應
反應前後質量改變
反應前後化學性質不變
能增加生成物的產量
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一種反應,其反應速率最快?
高空煙火
鐵釘生鏽
蠟燭燃燒
食物腐敗
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
依照碰撞學說,欲使反應速率加快,哪一種方法既可提升粒子的能量,又可增加碰撞的機率?
加熱
磨成粉狀
加入催化劑
濃度增加
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何種反應其反應速率最慢?
火藥爆炸
汽油燃燒
木材點燃
鐵生鏽
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何種因素可以使粒子碰撞時具有較大的能量,而使碰撞次數增加,化學反應加速?
濃度
表面積
溫度
催化劑
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列敘述何項錯誤?
反應物顆粒愈細,反應愈快
溫度愈高,有效碰撞頻率愈大,故加快反應
反應速率與溫度成正比
反應速率通常可以用時間的倒數表示
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