Hw Chp 2 email to biovcc@yahoo.com before the quiz on this chapter

1. Describe the relative size, location, and electrical charge of protons, neutrons, and electrons within an atom. Explain how the atomic number and mass number are determined.

2. Distinguish between ionic, covalent, and hydrogen chemical bonds.

3. Describe the four life-supporting properties of water. Describe an example of how each property affects some form of life.

4. Distinguish between the chemical properties of acids, bases, and neutral solutions. Explain how buffers stabilize the pH of acidic and basic solutions.

5. Explain why the search for extraterrestrial life centers on the search for water.