3~4酸鹼中和
Quiz
•
Chemistry
•
8th - 9th Grade
•
Medium

CHEN HSI CHUAN
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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者不是日常生活中酸鹼中和的例子?
用雙氧水消毒流血的傷口
農夫燒稻草產生灰燼,以改善土質
胃酸過多要服用胃藥
使用鹼性牙膏刷牙
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(甲)硫酸;(乙)氫氧化鈉顆粒;(丙)硝酸鉀粉末;(丁)水。上述四種物質中,哪些混合後不會使溶液溫度上升?
甲乙
甲丁
乙丁
丙丁
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列各化合物,哪一個加入純水中,會減少水溶液中氫離子濃度?
NaHCO3
CH3COOH
CO2
NaCl
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
取1 M 鹽酸 10 mL 放入試管中,測量溫度,再取1 M氫氧化鈣 5 mL 加入試管中,測量溫度。請問鹽酸與氫氧化鈣反應後,溫度的變化為何?
放熱反應,溫度下降
吸熱反應,溫度上升
吸熱反應,溫度下降
放熱反應,溫度上升
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
經過研究顯示,「鹼石」的化學成分是Na2CO3,下列哪一個不是它的性質?
跟鎂帶反應會產生氫氣
加入酸性水溶液,會產生二氧化碳
水溶液呈鹼性
可以用來作為清潔劑,又稱洗滌鹼
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
想要進行二氧化碳的檢測,需將下列何者藥品放入水中進行調配?
灰石
石灰
氫氧化鈉
硫酸鈣
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
「(1)海水因二氧化碳等非金屬氧化物的增加而酸化,嚴重影響珊瑚和其他分泌碳酸鈣的海洋生物生存。(2)因海水氫離子的濃度增加,這些海洋生物的碳酸鈣外殼可能會遭到分解。」關於此文字畫底線處內容的判斷與解釋,下列何者正確?
第(1)句合理,因為這些氧化物溶於海水中會使海水pH值增加
第(1)句不合理,因為這些氧化物溶於海水中會使海水pH值下降
第(2)句合理,因為這些海洋生物的碳酸鈣外殼會與氫離子反應
第(2)句不合理,因為這些海洋生物的碳酸鈣外殼不會與氫離子反應
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