Matter+Concepts

__Matter Concepts__ You have 60 minutes of class time to complete this immediately followed by a test on it. 1. The state of a substance can be identified by looking at its shape and volume. __Make the table__ and answer with “definite” or “no definite.” Identification || Shape || Volume ||
 * State
 * Solid ||  ||   ||
 * Liquid ||  ||   ||
 * Gas ||  ||   ||

2. The state of a substance is dependent on its molecular motion. Any change in thermal energy produces a change in molecular motion. The movement of particles in a substance increases from solids to liquids to gases. The attractive force between the particles in a substance holds them together. The balance between a particles’ motion and attractive forces determines a substance’s state. __Name and explain__ how motion and attractive force interact between the particles of a substance in __the following changes of state__. (You could act this out.) a. Solid to a liquid b. Liquid to a solid c. Liquid to a gas d. Gas to a liquid

3. An experiment has been done and the following data was collected. (Page 100) Use your knowledge of phase changes to __show and analyze the data__. Then explain the five conditions that occur in this data set. a. b. c. d. e. f. What is the melting point of this substance? g. What is the boiling point of this substance?
 * Temperature || -12 || -2 || -2 || 101 || 101 || 110 ||  ||
 * Time || 0 || .5 || 2 || 7 || 17 || 18 ||  ||

4. Make a model of a Sodium and a Chlorine atom. What parts should be in this model? a. Compare the atomic number “number of protons” in each element. b. Compare the number of “outer electrons” for each element. (found in your periodic table notes) c. The sum of the “outer electrons” for the two elements is… d. Having 17 protons determines that an atom is a ….. atom.

5. Make a model of a Calcium and a Oxygen atoms. What parts should be in this model? a. Compare the atomic number “number of protons” in each element. b. Compare the number of “outer electrons” for each element. (found in your periodic table notes) c. The sum of the “outer electrons” for the two elements is… d. The number of protons in an atom determines what ….. it is.

6. Make a model of two isotopes of Sodium. What parts should be in this model? a. Compare the atomic number “number of protons” in each isotope. b. Compare the number of neutrons in each isotope. c. The number of neutrons in an atom determines its … d. Compare the atomic masses of the two isotopes.

7. Make a model of two isotopes of Oxygen. What parts should be in this model? a. Compare the atomic number “number of protons” in each isotope. b. Compare the number of neutrons in each isotope. c. The number of neutrons in an atom determines its … d. Compare the atomic masses of the two isotopes.