八下CH3-1:電解質
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Easy
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15 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
有關電解質的描述,下列何者正確?(選出三個答案)
溶於水中能導電
常溫下任何狀態都能導電
分子在水中自動解離成原子
分子在水中自動解離成離子
不同電解質的解離程度不同
2.
MATCH QUESTION
1 min • 1 pt
將下列化學物質的化學性質正確配對
鹼性電解質
葡萄糖
不可燃非電解質
氯化鈉
酸性電解質
醋酸
可燃非電解質
酒精
中性電解質
氫氧化鈉
3.
MATCH QUESTION
1 min • 1 pt
請將石蕊試紙、廣用試紙與電解質酸鹼性正確配對
紅色石蕊試紙不變
藍色石蕊試紙變紅
中性
廣用試紙不變
紅色石蕊試紙變藍
藍色石蕊試紙不變
鹼性
廣用試紙不變
紅色石蕊試紙不變
藍色石蕊試紙不變
酸性
廣用試紙變紅
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
有關電解質的定義與性質,下列敘述哪些正確?(請選出三個答案)
電解質導電的原理由瑞典科學家「阿瑞尼斯」建立
「電解質解離說」能解釋其原理
「電解質解離說」是法拉第提出的
電解質水溶液維持電中性
原子失去電子形成陰離子,得到電子形成陽離子
5.
MATCH QUESTION
1 min • 1 pt
將正確的離子化學符號配對
Na+
氯離子
Mg2+
鉀離子
Al3+
鈉離子
Cl─
鎂離子
K+
鋁離子
6.
MATCH QUESTION
1 min • 1 pt
將正確的離子化學符號配對
Na+
鎂離子
Ca2+
氫離子
Mg2+
鈉離子
H+
鉀離子
K+
鈣離子
7.
MATCH QUESTION
1 min • 1 pt
請將正確的帶電原子團化學式配對
銨根離子
NH4+
硫酸根離子
SO42─
硝酸根離子
OH─
氫氧根離子
NO3─
碳酸根離子
CO32─
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