Chemistry
Senior High
粘土のコロイド溶液中に電極を挿入するとコロイドの粒子は陽極側に移動する。
粘土のコロイドを凝析させたい時最も効果的な塩はつぎのどれですか？
1.AlCl3
2.CaCl2
3.NaCl
4.Na3PO4
5.K2SO4
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