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37.將兩種不同的氧化物分別置入裝有等量水的甲、乙兩燒杯中,兩種化合物解離後產生H+與OH–的比例示意圖,如右圖所示, 則下列敘述何者正確?(A)測量pH值的結果:甲>乙(B)甲杯和乙杯混合後有放熱現
問題詳情
37.將兩種不同的氧化物分別置入裝有等量水的甲、乙兩燒杯中,兩種化合物解離後產生H+與OH–的比例示意圖,如右圖所示,
則下列敘述何者正確?
(A)測量pH值的結果:甲>乙
(B)甲杯和乙杯混合後有放熱現象
(C)甲杯和乙杯混合後水溶液呈酸性
(D)在甲杯中加入酚酞指示劑,水溶液呈紅色。
參考答案
答案:B
難度:簡單0.794118
統計:A(1),B(27),C(0),D(5),E(0)
用户評論
【
李承暘
】評論
甲-酸,乙-鹼,酸鹼中和-放熱
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