随意 Pop Quiz

The cleansing power of soap is lower in hard water because
Choose the right answer:
Option A it forms insoluble salt with calcium and magnesium ions
Option B the soap particles form complex ions with aluminium ions present in hard water
Option C the soap dissociates partially in water
Option D it is less soluble in hard water
 FuyuumiAmakusa posted 一年多以前
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