
B3C2_認識物質A卷
Quiz
•
Physics, Chemistry
•
8th Grade
•
Practice Problem
•
Medium
chungtsen chen
Used 1+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
元琪以燃燒匙取少量硫粉,用酒精燈點燃後,再放入氧氣瓶中燃燒。關於硫粉的燃燒情形,下列敘述何者正確?
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列各種生物的作用,何者所產生的變化為物理變化?
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列有關二氧化碳的敘述,何者正確?
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列的液體都是我們日常生活中可能接觸到的,則何者不是水溶液?
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
在食鹽與細砂的分離實驗中,若要分離出食鹽,圖中哪一種器材通常可不必使用到?
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列關於濃度、溶解度以及相關問題,正確的有幾項?(甲)溶液若達到飽和則其重量百分濃度為 100%;(乙)兩杯食鹽水溫度相同,一杯恰飽和,一杯底部有沉澱,則有沉澱這杯濃度較高;(丙)溶質的狀態必定為固態的;(丁)同一物質溶於水,在不同溫度之下的飽和溶液濃度會不相同;(戊)定溫下,一杯水溶液加入更多的水可以提升溶質的溶解度;(己)定溫下,一杯水溶液加入更多的水可以提升溶質的溶解量;(庚)一杯糖水倒一半出來,濃度保持不變。
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
有關溶液的敘述,下列何者錯誤?
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