B3C1-C3
Quiz
•
Chemistry, Physics, Science
•
8th Grade
•
Practice Problem
•
Hard
文宏 王
Used 6+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
進行實驗時,必須遵守實驗室的安全守則,請問下列實驗操作哪些是正確的?甲.傾倒液體藥品時,應快速直接倒入容器,以防藥品濺射傷人;乙.使用滴管吸取試液時,保持滴管的尖嘴朝下,不可倒置;丙.加熱過程中不可將試管口對準眼睛;丁.混合藥品時,為了節省時間,可直接用溫度計攪拌。
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
甲、乙兩正立方體,其質量比為2:3,而面積比為1:4,則甲、乙兩物體的密度比為何?
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
有一塊邊長為2公分的正方體金屬,用天平測出其質量為56公克,試問此金屬塊的密度為多少g/cm3?
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
日前新聞報導說:「有一輛高速行駛的車輛因爆胎造成翻車而爆炸」。此爆胎與爆炸各屬於何種變化?
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
純物質與混合物主要的區別為何?
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
某品牌營養液標示含鈣40 ppm,其意義為每1,000,000毫克之營養液中,含有多少毫克鈣?
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
翔驊將礦泉水600毫升加入250公克食鹽後變成了「礦泉食鹽水」,但是不論翔驊如何搖晃仍有50公克的食鹽無法溶解,則翔驊應如何計算食鹽水的重量百分率濃度?
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