Chemisty

Aluminum hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in coagulating the sol?

NaCl
CaCl2
Fe2(SO4)3
K3PO4

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asked by Lauren
  1. The idea behind coagulating sols is to use those salts that have the highest + and - charges and the most ions.

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    posted by DrBob222

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