Name: __________________________ Class: _____________________ Date: _____________________
Chemistry of Life Study Guide
1. Element –
2. Compound –
3. Mixture –
4. Atom –
5. Proton –
6. Electron –
7. Neutron –
8. Ion –
9. Isotope –
10. Valence Electrons -
11. Covalent bond –
12. Ionic bond –
13. Buffers –
Written by James Dauray http://www.aurumscience.com/biology Page 1
Name: ___________________________ Class: ______________________ Date: ____________________
1. What are the four elements that make up most of living matter?
2. How many protons, neutrons, and electrons are found in sodium?
(Atomic number = 11, Atomic mass = 23)
3. How can you tell by looking at a molecule whether it will have a lot of potential energy?
4. Show how a single bond, double bond, and triple bond are drawn using carbon atoms.
5. Oxygen has 6 valence electrons. How many covalent bonds can it form? How do you know?
6. Why are sodium and chlorine ions attracted to each other? What kind of bond do they form?
7. Salts usually dissolve and break apart when in water. Sugar never does. What is the difference between
these two molecules?
8. Explain how water striders are able to stay on the surface of water.
9. When looking at a pH scale (see below), be able to identify a strong acid, weak acid, strong base, weak
base, and neutral substance.