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27.( )某生配製食鹽水溶液,當溶液達到飽和後,杯底尚留少許食鹽晶體,隔天中午發現食鹽結晶已消失,下列哪一項敘述比較能解釋此現象? (A)食鹽在水中放置愈久,溶解度愈大 (B)隔天中午氣溫較高,
問題詳情
27.( )某生配製食鹽水溶液,當溶液達到飽和後,杯底尚留少許食鹽晶體,隔天中午發現食鹽結晶已消失,下列哪一項敘述比較能解釋此現象?
(A)食鹽在水中放置愈久,溶解度愈大
(B)隔天中午氣溫較高,食鹽溶解度增大
(C)杯中水分蒸發,導致食鹽溶解
(D)放入太多食鹽,導致溶解度改變。
參考答案
答案:B
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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