第三章

Quiz
•
Chemistry
•
8th Grade
•
Medium

CHEN HSI CHUAN
Used 8+ times
FREE Resource
45 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者的水溶液可以導電?
氫氧化鈉
酒精
蔗糖
葡萄糖
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關電解質的敘述,下列何者正確?
只要能導電的物質就是電解質
固態的食鹽不能導電,所以食鹽為非電解質
氫氧化鈉水溶液能導電,是因為含有金屬鈉原子
氫氧化鈉溶於水會解離出離子,所以水溶液可以導電
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若濃度均為0.l M的500 mL水溶液,下列哪一杯水溶液所解離的粒子總數最多?
C6H12O6
CH3OH
NaOH
CH3COOH
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者是酸性溶液與鹼性溶液的共同性質?
石蕊試紙的顏色變化
水溶液均可以導電
與大理石作用可以產生二氧化碳
可以分解油或脂肪
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列常吃的水果,哪一種的pH值最小?
西瓜
蘋果
香蕉
檸檬
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在純水中加入少量的氫氧化鈉,則下列有關水溶液中氫離子濃度變化的敘述,何者正確?
氫離子濃度漸增且[H+]>10-7M
氫離子濃度漸減且[H+]<10-7M
氫離子濃度不變且[H+]=10-7M
氫離子濃度漸減
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
曉英要配製稀硫酸水溶液,她拿兩個燒杯,其中一杯裝有密度為1.8g/cm3、重量百分濃度為98%的濃硫酸10mL,另一杯則裝有適量蒸餾水。將兩杯溶液完全混合後,配製出的溶液體積恰為100mL,請問最後稀硫酸的容積(體積)莫耳濃度為多少M?(H=1、S=32、O=16)
0.36
1.80
2.78
9.00
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