
s3_chem_rock_chi
Quiz
•
Science, Chemistry
•
9th Grade
•
Hard
Steven Wong
Used 16+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
下列哪項有關石灰水的陳述不正確?
石灰水是無色的。
把碳酸鈣溶於過量的水中會生成石灰水。
石灰水是氫氧化鈣的水溶液。
把二氧化碳通入石灰水直至過量時,它會先變成乳白色,繼而變成無色。
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
如果把二氧化碳通入石灰水中,會有甚麼可觀察到的變化?
出現泡騰現象。
溶液變成黃色。
溶液變成奶白。
碳酸鈣溶解。
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
為了鑑定某種固體,一名學生進行焰色試驗,該固體令火焰呈現磚紅色。接着學生把固體放進稀氫氯酸中,固體在酸中溶解,但沒有其他可觀察到的變化。該固體可能是
碳酸鈣。
碳酸鈉。
氯化鈣。
氯化鈉。
4.
MULTIPLE SELECT QUESTION
45 sec • 5 pts
在某實驗中,一名學生把石灰石加熱。下列哪些有關其生成物的陳述正確?
釋出的氣體會令石灰水變成乳白色。
過程中會有氫氧化鈣生成。
生成的固體在焰色試驗中會令火焰呈現磚紅色。
過程中會有氧化鈣生成。
5.
MULTIPLE SELECT QUESTION
45 sec • 5 pts
把石灰石加進稀氫氯酸時,會有甚麼可觀察到的變化?
出現泡騰現象。
石灰石溶解。
有白色沉澱物生成。
產生磚紅色火焰
6.
MULTIPLE SELECT QUESTION
45 sec • 5 pts
下列的方法,何者可用來鑑別固體氯化鈉和固體碳酸鈣?
測試固體在水中的溶解度。
觀察固體的顏色。
把稀硝酸和硝酸銀溶液加到固體中。
焰色測試
7.
MULTIPLE SELECT QUESTION
45 sec • 5 pts
下列的反應,何者會生成白色沉澱物?
把硝酸銀溶液與海水混合。
把碳酸鈣強熱。
把二氧化碳氣體通入氫氧化鈣溶液中。
過濾氫氧化鈣。
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