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國二下理化3-4酸鹼反應課文重點複習
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( )俗稱蘇打,是一種白色粉末,溶於水呈鹼性。
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碳酸氫鈉受熱會分解出( ),是乾粉滅火器的重要原料。
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( )是白色固體,微溶於水,是石膏的主要成分。
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中和是一種( )熱反應。
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酸鹼中和的離子反應式: (A )+ (B) → H2O (中和必然反應), 則AB=(____ _____)[答案間須空1格]
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酸鹼中和的表示式:酸 + 鹼 → (A )+ (B)。則AB=(___ ___)[答案間須空1格]
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( )俗稱食鹽,為無色晶體,細小的粉末呈白色.
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( )是一種白色固體,不易溶於水,為石灰岩. 大理岩 及貝殼的主要成分。
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胃液(含有( )),若分泌過多,會讓人感到不舒服,就需要服下弱鹼性物質(如碳酸氫鈉)的胃藥, 與胃酸產生中和反應。
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( )俗稱小蘇打,是一種白色固體,溶於水呈弱鹼性。
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