把碳酸鈣粉末強烈加熱一段時間後,生成了一白色粉狀固體。下列哪種物質可能是這固體?

實驗4.2 探究熱、水和稀氫氯酸對碳酸鈣的作用

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Hoi Lam
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把碳酸鈣強烈加熱時,涉及哪個過程?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把足量的水加進碳酸鈣粉末時,會觀察到甚麼?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把過量二氧化碳通入乳濁的石灰水時,會發生甚麼?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. 把一無色氣體通入石灰水時,石灰水變得乳濁。該氣體可能是甚麼?
氮
氧
氫
二氧化碳
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
3. 把稀氫氯酸加入碳酸鈣時,可觀察到甚麼?
(1) 發生泡騰。
(2) 碳酸鈣溶解。
(3) 產生磚紅色的火焰。
只有(1)和(2)
只有(1)和(3)
只有(2)和(3)
(1)、(2)和(3)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
稀氫氯酸的危險性質是甚麼?
有毒
腐蝕性
刺激性
有害
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(挑戰題) 用飲管把空氣吹入飽和的氫氧化鈣溶液時,濾液變得乳濁。下列哪項陳述正確?
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