Write the micelle formula of the resulting hydrosol C, provided that substance A is taken in excess. Indicate the sign of the charge of a colloidal particle.
Specify the electrolyte-coagulator with a lower threshold
A(ex.) B C Electrolyte-coagulator
Na2SiO3 HCl H2SiO3 K2SO4, (CH3COO)2Zn, AlCl3

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.