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Chemistry Chemical Mixtures Colloids Solved Quiz

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ANSWER KEY QUIZ IN COLLOIDS Quiz #2 1. Which substance is a Colloid based on the results of the activity. Two dialysis tubes were submerged in water. A: Ferric Hydroxide B: Potassium Chromate Explain your answer. a. Ferric Hydroxide is the one that is colloid. ( 2pts) Explanation: The color of the water where the substance was submerged remained colourless, it’s just indicates that the particles of Fe(OH)3 did not pass through the cellophane . ( 3pts) 1. Can the components of a colloid be separated by dialysis process? Please explain your answer. - Yes, - the solute of a colloid remains at the dialyzing membrane, selectively allowing the passage of small –sized particles only. ( 3pts) 1. Can a colloid be separated by the use of a filter paper? Explain. ( 5pts) NO; Fe (OH)3 🡪 it passed thru the filter paper . The colloidal particles are smaller than the openings of the fil ...
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