3C 2021-03-29
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard

唐 寶蓮
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種岩石的主要化學成分不是碳酸鈣?
石灰石
花崗岩
大理石
白堊
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪項是把碳酸鈣強熱後的觀察結果?
無可見變化
有帶有光澤的固體生成
有白色粉末生成
有大量氣泡釋出
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪條文字方程式表示碳酸鈣的熱分解作用?
碳酸鈣→氧化鈣+二氧化碳
碳酸鈣→氫氧化鈣+二氧化碳
碳酸鈣→氧化鈣
碳酸鈣→氫氧化鈣
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把水滴在氧化鈣上會有甚麼觀察結果?
無可見變化
會吸熱
產生黑色煙
產生白色煙
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪條文字方程式表示把水滴在氧化鈣上所涉及的化學反應?
氧化鈣+水→氧化鈣溶液
氧化鈣+水→熟石灰
氧化鈣+水→氫氧化鈣
氧化鈣+水→碳酸鈣
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
氧化鈣和氫氧化鈣的俗稱分別是
生石灰和熟石灰
熟石灰和生石灰
石灰石
石灰粉和生石灰
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
石灰水是下列哪一化合物的飽和溶液?
碳酸鈣
生石灰
氧化鈣
氫氧化鈣
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