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國二下理化4-4可逆反應與平衡課文重點複習
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鉻酸根 (黃色)+ 氫離子 ⇄ 二鉻酸根(橘紅色) + 水 , 在溶液中加入鹼性物質, 溶液將變為( )色.
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指在同一條件(如同溫同壓或同密閉系統)下,正反應方向與逆反應方向均可同時進行的反應, 稱為( )反應.
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在一可逆反應中,達到正反應的速率等於逆反應的速率的狀態, 稱為( )狀態.
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當溶質的溶解速率等於溶質的沉澱速率, 此時的溶液稱為( )溶液.
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含有( )態反應物或生成物的可逆反應,必須在密閉條件下,才能達到平衡。
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