取10mL、1.0M的鹽酸,加數滴酚指示劑,再慢慢加入l.0M的氫氧化鈉溶液15mL,一邊以玻棒攪拌。則有關此反應結果的敘述,下列何者正確?
電解質會考試題

Quiz
•
Chemistry
•
8th - 9th Grade
•
Medium

CHEN HSI CHUAN
Used 3+ times
FREE Resource
33 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
溶液變為中性
溶液的pH值增加
溶液的溫度下降
溶液由紅色變為無色
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
. 小華看見外公將收割後留在田裡的稻草燒成灰,就問外公:「燒稻草做什麼?」外公說:「稻草灰可以作肥料,又可以中和土壤的酸性。」稻草灰中可以作肥料又可以中和土壤酸性的成分是什麼?
氯化鈉
氯化鉀
硫酸鈉
碳酸鉀
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關鈉離子(Na+)與鈉原子(Na)的比較,下列敘述何者正確?
兩者的化學性質相同
兩者所帶的電荷相等
兩者所含的質子數相等
兩者所含的電子數相等
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
浩文測試一種無色水溶液。當加入酚酞指示劑時水溶液呈無色,放入大理石則產生氣泡。下列何者最可能為此水溶液中所含的溶質?
氫氧化鈉
氫氧化鈣
氯化氫
氯化鈉
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲溶液是由蒸餾水3mL及l滴濃度為1.0M的鹽酸混合而成,乙溶液由蒸餾水3mL及1滴甲溶液混合而成。在常溫下,下列有關甲、乙兩溶液的pH值關係何者正確?
甲<乙<7
乙<甲<7
乙>甲>7
甲<7、乙>7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
放一小撮食鹽(NaCl)於水中,食鹽完全溶解,下列有關食鹽在水中溶解的變化的敘述何者正確?
食鹽與水反應變成氯化鈉分子散布在水中
食鹽形成鈉離子與氯離子散布在水中
食鹽形成鈉原子與氯原子散布在水中
食鹽形成氯化鈉分子散布在水中
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在25℃時將CaO固體加入水中,形成飽和水溶液。有關此水溶液的敘述,下列何者正確?
此水溶液pH值小於7
此水溶液可用來檢驗氧氣
此水溶液加入酚酞試劑呈紅色
加稀鹽酸於此水溶液產生氣泡
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