Wang Peidong's answer to nxrain's Secondary 3 Chemistry question.

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Wang Peidong
Wang Peidong's answer
4 answers (Tutor Details)
1st
B. We want to remove the new paint, so the new paint should be soluble in your cleansing agent, while the old paint, which we want to retain, should be insoluble so that it will not get cleaned away.
nxrain
Nxrain
7 years ago
Ty! :)