LARN 125 C32D1
LARN 125 C32D1
Start the following in class:
1.a. The first required focus topic, J125A, for today is
What are the meanings of the terms
coarse mixture,
suspension,
colloid, and
solution ?
1.b. The second required focus topic, J125B for today is
Copy the following chart and fill in examples for the different types of mixtures. Coarse mixture
Suspension
Colloid
Solution
Scatters Light from a Beam of Light [Exhibits the Tyndall Effect]? [Yes or No]
Typical Appearance of the Mixture
Typical Size Range of Suspended or Dissolved Particles
Generally Separable by Letting it Settle for a Time (Sedimentation)? [Yes or No]
Appearance [Variegated, Non-Uniform, Cloudy, Clear?]
Degree of Uniformity Descriptor [Heterogeneous orHomogeneous?]
Approximate Sizes of Dispersed Particles
> ____nm
____nm - ____nm
< ____nm
Separable by Ordinary Filters? [Yes or No]
Exhibits Brownian Motion? [Yes or No]
Example #1:
Example #2:
2. Do all the pages in the chapter 15 Water and Aqueous Systems [Formative] Test as a formative assessment to find out some of the things that you do and do not know,...