10分鐘小測:第36章 化學反應的速率
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
某學生使用圖中所示的裝置來研習某反應在25°C的速率。下列哪個是該學生可能研習的反應?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在室温下,下列哪反應是最快的?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮在某温度下鎂與稀氫氯酸的反應:
Mg(s) + 2HCl(aq) → MgCl₂(aq) + H₂(g)
若1.22 g的鎂與稀氫氯酸能在10秒內完成反應,在這時距內,鎂消耗的平均速率(在該温度下)是多少?
(相對原子質量:Mg = 24.3)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在一實驗中,某學生把數塊碳酸鈣加進過量的稀硝酸,並每隔2分鐘記錄所釋出二氧化碳的體積,直至碳酸鈣完全反應為止。實驗的結果如坐標圖所示。在下列哪時距,反應的速率最高?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮甲酸甲酯與稀氫氧化鈉溶液的反應:
HCO₂CH₃(l) + NaOH(aq) → HCO₂Na(aq) + CH₃OH(aq)
哪坐標圖最能代表從把兩反應物混合開始,CH₃OH(aq)的濃度隨時間的變化?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮以下反應:
5Br⁻(aq) + BrO₃⁻(aq) + 6H⁺(aq) → 3Br₂(aq) + 3H₂O(l)
下列哪個有關這反應的速率的表示式正確?
A. ∆[Br⁻(aq)]/∆t = 5 × ∆[H⁺(aq)]/∆t
B. ∆[Br⁻(aq)]/∆t = 6/5 × (∆[H⁺(aq)]/∆t)
C. ∆[Br⁻(aq)]/∆t = 5/6 × (∆[H⁺(aq)]/∆t)
D. ∆[Br⁻(aq)]/∆t = 6 × ∆[H⁺(aq)]/∆t
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
參看坐標圖。在第600秒,這反應的瞬間速率是多少?
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