ｐh試験紙で酸性の正体を調べる（水素イオンが酸の性質を示す実験） 中学3年化学
Synopsis
中学3年生理科 化学分野 塩酸（塩化水素→水素イオン＋塩化物イオン）を染み込ませたひもを、ｐH試験紙に乗せ、電流を流した ...
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