如圖,將竹筷削成羽毛狀的用意為何?
國中自然2下ch4反應速率與平衡

Quiz
•
Chemistry
•
8th Grade
•
Medium
翰林出版國中自然 翰林出版國中自然
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8 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
增加火焰明亮度
增加接觸面積
美觀
使竹筷不易點燃
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
生活中有哪些利用溫度控制反應速率的例子?
動物的體溫始終保持在一定範圍
加油站貼有「嚴禁煙火」的標語
易燃物上貼有「易燃」的標示
以上皆是
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
關於催化劑的敘述,何者錯誤?
不能改變產物的種類與量
又稱為觸媒
是化學反應中的生成物
可以加快反應速率
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列何者是生物體中的催化劑?
酵素
觸媒轉化劑
二氧化錳
過氧化氫
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
自由女神像經過長時間與氧反應,使其表面覆蓋了什麼?
氧化鋁
氧化銀
鐵鏽
銅綠
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列何者對氧的反應速率最快?
Fe
Au
Na
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列何者的反應速率時間最快?
鐵釘生銹
煙火爆炸
形成鐘乳石
8.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
將紙逐一放入爐火中,會比整疊放入燒得更旺盛,這是因為?
反應物的總體積不同
反應物的接觸面積不同
物質對氧的活性不同
溫度高低的不同
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