107國中自然2下_1-1

Quiz
•
Other
•
7th - 9th Grade
•
Medium

Yu Liu
Used 9+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
真真操作碳酸鈉溶液加氯化鈣溶液的實驗:反應前所有溶液與容器的質量總和為W1,反應後測得總質量為W2,則W1與W2的大小比較,下列何者正確?
W1=W2
W1<W2
W1>W2
資料不足,無法判斷
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
真真操作碳酸鈉溶液加氯化鈣溶液的實驗,反應前所有溶液與容器的質量總和為W1,而應後測得總質量為W2。若W1=W2,則由實驗的結果可以說明下列何者?
能量守恆定律
質量守恆定律
阿基米德原理
帕斯卡原理
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某反應方程式為:甲+乙→丙+丁,今有10公克的甲及5公克的乙恰好完全反應,則將生成6公克的丙及多少公克的丁?
6公克
9公克
10公克
12公克
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
燃燒後的蠟燭,質量會變輕,其原因為何?
不遵守質量守恆定律
燃燒後的部分產物散失到空氣中
蠟燭燃燒為化學變化
蠟燭並非純物質
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將12公克的碳完全燃燒後,生成44公克新物質,試問有多少公克的氧參與反應?
8
16
24
32
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鐵生鏽後質量會增加,原因為何?
鐵生鏽是質量守恆定律的例外
測量的天平有問題
空氣中的氧也參加反應
鐵吸收空氣中的二氧化碳
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將少許的大理石和稀鹽酸裝在試管中,如附圖所示,一段時間後,發現試管的總質量減少,其原因為何?
此反應不遵守質量守恆定律
因為產生了白色沉澱
反應生成的氣體逸散到空氣中
消耗掉一部分的大理石
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