Daily Practice 10/13/09. What could you do different this quarter to improve your grade vs. 1 st quarter? What should you do if you miss an assignment? How many days do you have to complete it? Who’s responsibility is it to make up tests/quiz/assignments?
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Ch. 2 The Chemistry of Life
Atoms, Elements, and Compounds
Identify the particles that make up atoms.
Diagram the particles that make up an atom.
Compare covalent bonds and ionic bonds.
Describe van der Waals forces.
in an atom of elements
Each individual block in the grid represents an element.
The table is called periodic because elements in the same group have similar chemical and physical properties.
When a nucleus breaks apart, it gives off radiation that can be detected and used for many applications
H2O → 2:1→ 2:H and 1:O
NaCl → 1:1 → 1:Na and 1:Cl
Identify the parts of a chemical reaction.
Relate energy changes to chemical reactions.
Summarize the importance of enzymes in living organisms.
Water and Solutions
Evaluate how the structure of water makes it a good solvent.
Compare and Contrast solutions and suspensions.
Describe the difference between acids and bases.
2e- H + 8e- = 10e-
10protons + 10 e- = 0 (neutral)
Food coloring dissolved in
water forms a homogenous
A salad is a heterogeneous mixture.
The Building Blocks of Life
Describe the role of carbon in living organisms.
Summarize the four major families of biological macromolecules.
Compare the functions of each group of biological macromolecules.