一化合物溶解於水時會導電,則它一定是下列何者?
國中自然2下ch3-1電解質

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
鹽
電解質
酸
鹼
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪一種溶液作電解質導電的實驗時,電燈泡不會發亮?
檸檬汁
橘子汁
糖水
海水
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
電解質是因為下列何種粒子在水溶液中移動而導電?
電子
質子
離子
分子
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
食鹽(NaCl)在固體時不能導電,但溶於水後則可以導電。試問這是因溶液中什麼的移動而導電?
Na+
Cl-
Na+及Cl-
H2O
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列何者是H2SO4、NaOH、KNO3三種水溶液共同的性質?
都是酸
都是鹼
都是鹽類
都是電解質
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
氯化鈣水溶液中,所含的氯離子(Cl-)與鈣離子(Ca2+)的總數比為多少?
1:2
2:1
1:1
2:2
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
有關電解質溶液的敘述,下列何者錯誤?
電解質溶液必呈電中性
電解質溶液必呈中性
電解質溶液必可導電
電解質溶液中有正、負離子
8.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列敘述何者是HCl、NaOH、KNO3等三種水溶液的共同性質?
都具有酸性
都具有鹼性
都不能導電
都呈電中性
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