LARN 020 C5D4

Start the following in class:

1.. Return to your class notes on the classification of matter OR to the web site at http://chemwiki.ucdavis.edu/Analytical_Chemistry/Qualitative_Analysis/Classification_of_Matter and reflect on the meanings of the terms substance, mixture, suspension, colloid, and solution.

Reflect on what has been explained and this time write out your responses to the following seven questions as journal reflection entry J20:

All matter is either made of substances or mixtures of substances.

a. There are two different types of substance. What are the two different types of substance and how are they different?

b. There are three different types of mixture. What are they and how do they differ?

c. How can suspensions be separated?

d. How can solutions be separated?

e. What are colloids?

f. What is the approximate range of particle sizes necessary to produce a colloid?

g. Why do the above mentioned particle sizes not result in solutions nor in suspensions?

2. a. Construct a Frayer word map for the word “formula unit“. Refer to https://drive.google.com/open?id=0B9ft9hAr_RjiMm8xUWljMU0tWjQ for more information as to what a Frayer word map looks like.

b. Construct a Frayer word map for the word “chemical change”. Refer to https://drive.google.com/open?id=0B9ft9hAr_RjiMm8xUWljMU0tWjQ for more information as to what a Frayer word map looks like.

c. Construct a Frayer word map for the word “chemical property”. Refer to https://drive.google.com/open?id=0B9ft9hAr_RjiMm8xUWljMU0tWjQ for more information as to what a Frayer word map looks like.

3. Fill in the following chart for a solid, liquid, and gas at the same temperature.

		solid	liquid	gas
1	amount of particle contact
2	amount of restriction of the particles to move around
3	particle spacing
4	magnitude of attractive forces
5	enthalpy (energy at constant pressure; potential energy)
6	amount of disorder (entropy)