下列物質的水溶液何者呈鹼性?

B4C3練習用

Quiz
•
Chemistry
•
8th Grade
•
Medium
chungtsen chen
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29 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
NaHCO3
H2CO3
CH3COOH
H2SO3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有關以氫氧化鉀溶液來中和硫酸的實驗,其裝置如圖,並以酚酞作為指示劑,下列敘述何者正確?
滴定管中應放置硫酸
酚酞指示劑應置於滴定管中
中和完成之後,錐形瓶內的溶液呈無色
中和完成之後,錐形瓶內的溶液可導電
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列敘述何者正確?
工業上,常利用電解熔融的 NaCl 來製造燒鹼
外科繃紮及塑膠用的燒石膏主要成分為 CaCO3
農夫們常利用稻草燃燒後的灰燼中,其所含的硝酸鉀來中和土壤的酸性
碳酸鈉及碳酸氫鈉兩者主要的區別為,碳酸氫鈉受熱時可以產生二氧化碳,另一則否
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