1. Using the class whiteboard, explain the octet rule and draw the electron shells of Chlorine and Sodium.

2. Using the answer from the previous question, explain the type of bond formed by Chlorine and Sodium.

3. Numerically speaking, what is the difference between major and trace elements?

4. Explain the difference between atomic number and atomic weight
Explain the difference between atomic number and atomic weight. How can an atom change its mass without becoming a different atom?

5. What would be the result if Plutonium emitted an alpha particle
What would be the result if Plutonium emitted an alpha particle? A beta particle?
(symbol: Pu, atomic number: 94; atomic mass: 244)

6. Using the class whiteboard, illustrate the polarity of a water molecule. Draw two more water molecules and place Hydrogen bonds between all of the water molecules.

7. Diagram the three basic types of chemical reactions
Diagram the three basic types of chemical reactions. Include where water is used and released as well as where energy is used or released.

8. List three properties of water
List three properties of water. Describe what those properties mean and provide an example of how each property benefits the human body.

9. Besides water, oxygen, and carbon dioxide, what is another group of important inorganic substances. Provide an example.

10. The pH of a solution goes from 8 to 4
The pH of a solution goes from 8 to 4. What was the change in H+ ion concentration?

11. The OH- ion concentration of a solution increases by 10,000 times
The OH- ion concentration of a solution increases by 10,000 times. If the original pH was 4, what is the new pH of the solution?

12. What must a compound have to be classified as organic
What must a compound have to be classified as organic? List the four major groups of organic substances.

13. What are the monomers or structural building blocks of each of the four major groups of organic compounds?

14. Provide a function of each of the four major groups of organic compounds.

15. What level of protein structure does this diagram represent?

16. What level of protein structure does this diagram represent?

17. What level of protein structure does this diagram represent?

18. What level of protein structure does this diagram represent?

19. What organic macromolecule does this diagram represent?

20. What level of protein structure does this diagram represent?

21. Differentiate between HDLs and LDLs
Differentiate between HDLs and LDLs? Which one carries “bad” cholesterol? With what condition is it associated?

22. List the four nucleotides present in DNA
List the four nucleotides present in DNA. Which ones are pyrimidines and which ones are purines? What base pairs do they form?

23. Draw a diagram of metabolism
Draw a diagram of metabolism. Include the following labels in your diagram: small molecules, large molecules, anabolism, catabolism, hydrolysis, dehydration synthesis, H2O used, H2O released, energy used, and energy released.

24. Using the diagram from the previous answer, illustrate the relationship between metabolism and the general scheme of the ATP energy cycle.