93. Solving a chemistry problem

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153.3 When substance B is introduced slowly enough into a dilute solution of substance A, the formation of a hydrosol of substance C is possible. Write the formulas of micelles and indicate the sign of the electric charge of the colloidal particles of this sol. Which of the recommended substances is the most economical coagulant for this sol?

N A B C Coalescer
3 Na2SiO3 HCl H2SiO3 Na2SO4; Al(NO3)3; NH4Cl

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