Chemistry of Life Study Guide

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					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                   Page 1
Name: ___________________________ Class: ______________________ Date: ____________________

Short Answer
   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.

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Description: A study guide to help students condense their notes from the chemistry of life unit.
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