
113-8下自然習作ch1
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Easy
林 炳弘
Used 3+ times
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36 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小馨觀察下列化學反應,並記錄其所伴隨的現象,哪一個是正確的?
藍色蝶豆花水溶液加食醋後,產生顏色變化
加熱小蘇打粉,產生白煙
打開暖暖包,鐵粉變成白色
二氧化碳通入澄清石灰水,顏色不會改變
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲分子的結構如圖所示,其中每一個球皆代表一個原子。若此原子每一個的質量為一個碳原子的4/3倍,且碳的原子量為12,則甲的分子量為下列何者?
6
27
36
48
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知甲和乙兩種物質反應生成丙和丁,其反應式為:3甲+乙→2丙+2丁。附表是甲和乙反應的一組實驗數據,理論上可以生成多少公克的物質丁?
18公克
44公克
70公克
88公克
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小新專題研究的題目是「傳統美食—油條」,報告部分內容如圖所示,請你根據他的報告內容推測,食品膨鬆劑的化學式為何?
碳酸鈉Na2CO3
碳酸氫鈉NaHCO3
碳酸氫銨NH4HCO3
碳酸鈣CaCO3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一個現象,不是因為化學變化?
生米煮成熟飯
生雞蛋煮成了水煮蛋
生來水煮沸成開水
國慶日的絢爛煙火
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
密閉容器中置入20公克碳酸鈣的水溶液及20公克氯化鈣的水溶液,反應後會生成碳酸鈣沉澱及氯化鈣水溶液,此時容器內物質的總質量會是多少公克?
20公克
30公克
40公克
50公克
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
同樣1莫耳的氮和氧氣,哪一個分子數較多?
氮氣
氧氣
一樣多
不同的氣體,無法比較
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