
反應速率1
Quiz
•
Science
•
7th - 9th Grade
•
Medium
鄭之偉 鄭之偉
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪一個反應因加入催化劑而加快反應速率?
銅生銅綠
雙氧水加二氧化錳製造氧氣
木材在純氧中燃燒
鐘乳石的形成
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
野外露營或攀登高山時,鎂塊常是求生必備的物品之一。將鎂塊削成碎片,在潮濕環境或強風吹襲中,仍然能引燃柴火,是一種較不受環境限制的野外生火方式。將鎂塊「削成碎片」的動作,主要是考慮下列何種影響反應速率的因素?
溫度
催化劑
物質本質
接觸面積
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關國慶日煙火的施放,下列敘述何者正確?
煙火爆炸屬於緩慢的化學反應
煙火爆炸屬於溫和的化學反應
煙火爆炸屬於一瞬間、快速的化學反應
煙火爆炸屬於需要長時間才能發現變化的化學反應
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
生活中常見的化學反應,請問何者的反應速率最快?
點燃火柴
酒精發酵成醋
鐵窗生鏽
相片褪色
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪個敘述是正確的?
在空氣中加熱時,鈉比鐵容易燃燒是因為接觸面積不同。
火柴在純氧中筆在空氣中燃燒劇烈,是跟物質的活性有關。
在雙氧水中加入二氧化錳較容易產生氧氣,這是因為催化劑的關係
細顆粒的冰糖比大塊的冰糖容易溶解於水中,這是因為濃度不同。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
常利用單位時間內反應物或生成物的變化量來表示的是下列何者?
化學平衡
酸鹼反應
反應速率
中和反應
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
枚曄利用貝殼與鹽酸來進行製造二氧化碳的實驗。但他覺得反應速率太慢,於是將貝殼敲碎。這樣有何功用?
增加反應物的表面積
增加反應物濃度
添加催化劑
提高反應溫度
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