國二動動金手指課程回顧
Quiz
•
Science
•
8th Grade
•
Medium
文宏 王
Used 1+ times
FREE Resource
20 questions
Show all answers
1.
OPEN ENDED QUESTION
45 sec • 1 pt
你的班級是?
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2.
OPEN ENDED QUESTION
30 sec • 1 pt
座號?
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OFF
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根據你們那組做小蘇打粉加熱和暖暖包的發熱現象,兩者在反應前後的質量變化有什麼不一樣?
兩者質量均減少,因為產生氣體產物逸散到空氣中
兩者質量均增加,因為與空氣中的氣體結合反應
小蘇打粉加熱質量減少,暖暖包的發熱現象質量會增加
小蘇打粉加熱質量增加,暖暖包的發熱現象質量會減少
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在小蘇打與鹽酸的化學反應實驗中,倒入小蘇打粉後,氣球發生了什麼變化?這是與甚麼氣體有關?
緊縮倒下,二氧化碳
膨脹鼓起,二氧化碳
緊縮倒下,氧氣
膨脹鼓起,氧氣
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在小蘇打與鹽酸的化學反應實驗中,將氣球拆下後,放置於電子天平上,再次秤量總質量。將發現總質量的前後變化是?
增加
減少
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在氯化鈣與碳酸鈉的化學反應實驗中,兩溶液混合後,將發現何種最明顯的變化?
顏色
溫度
氣味
狀態
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在氯化鈣與碳酸鈉的化學反應實驗中,將橡皮塞拆下後,放置於電子天平上,再次秤量總質量。將發現總質量的前後變化是?
增加
減少
不變
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