In class 9/13/13,
we reviewed for the unit test. We went over the properties of water: cohesive behavior,
ability to moderate temperature, freezing upon expansion, and versatility as a
solvent. We also went over basic chemistry, covalent and ionic bonding, number
of protons, neutrons, and electrons, and valence electrons.
We reviewed
polymers which are made through condensation processes (monomers + monomers=
polymers and release of water) and we reviewed how monomers get released
(polymers + water=release of monomers). In addition we went over different kinds
of isomers: structural isomers (differ in covalent partners), geometric isomers
(differ in arrangement of double bonds), and enantiomers (differ in spatial
arrangement around an asymmetric carbon). There are also different groups of
isomers: hydroxyl (ex: ethanol), carbonyl (ex: acetone), carboxyl (ex: vinegar),
amino (ex: glycine), sulfhydryl (ex: ethane thiol), and phosphate (ex: glycerol
phosphate).
Hydroxyl group: ethanol
Structural Isomer
After we
reviewed these topics, we took a quiz, which helped us prepare for the test.
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