10分鐘小測:第33章 化學反應中的能量變化
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些有關能量的陳述正確?
(1) 能量不可被創造或毀滅。
(2) 能量可由一種形式轉換為另一種形式。
(3) 體系與環境之間的總能量在反應前和後維持不變。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些有關水與生石灰的反應的陳述正確?
(1) 反應中離子鍵會斷裂。
(2) 反應中共價鍵會斷裂。
(3) 反應的ΔH是正值。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些過程是吸熱的?
(1) H₂ → 2H
(2) HCl → H + Cl
(3) 2H + O → H₂O
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮某反應的焓級圖。哪個組合正確?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮以下方程式。
Mg(s) + CuSO₄(aq) → MgSO₄(aq) + Cu(s) ΔH < 0
下列哪些有關這反應的陳述正確?
(1) 這是置換反應。
(2) 這是氧化還原反應。
(3) 這是放熱反應。
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
甲烷的燃燒焓變是−890.8 kJ mol⁻¹。下列哪項或哪些陳述正確?
(1) 甲烷的燃燒釋出熱。
(2) 甲烷的燃燒吸收熱。
(3) 甲烷燃燒的生成物的總焓較甲烷與氧的總焓少。
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
某對溶液在常温常壓下混合。坐標圖顯示混合物的温度隨時間的變化。下列哪些可能是這對溶液?
(1) Fe(NO₃)₂(aq)和NaOH(aq)
(2) NH₃(aq)和HNO₃(aq)
(3) AgNO₃(aq)和HCl(aq)
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