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Class Outline for Monday, April 18,
2005
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Bridge Project Winners
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Bridge Homework
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Web site/Newsgroup
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Reading for this week
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Vocabulary
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Acids, acidity, bases,
basicity, pH, indicators, corrosive, ions, salts,
hydroxide
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Introduction to Acids & Bases
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Myth Busters - Menudo
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Properties
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Uses
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Today's Framework/Standard
5.a. Students know reactant
atoms and molecules interact to form products with different
chemical properties.
All
students should be able to learn the more important chemical
reactions and the elements involved in them, especially if
common compounds such as vinegar (acetic acid), baking
soda (sodium bicarbonate), table salt (sodium chloride),
carbonated water, and
nutritional minerals and
foods are used in activities or
demonstrations. An example might involve adding calcium chloride
and baking soda to water. Such reactions demonstrate clearly the
differences in properties between reactants (solids and
liquid) and products
(solid, liquid, and gas).
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Sour taste
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Corrosive
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React with some metals to
produce H2
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Solutions Conduct Electricity
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Can Change the Color of a
Substance
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Uses of Acids
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Industry - Chemical
processing - paint, fertilizers, rubber/plastics
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Manufacturing
- metal processing etching/plating, cleaning
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Natural Acids
used for Digestion
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Cleaning/Decontaminating Water
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Foods
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Weak/Strong
Acids
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Properties of Bases
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Slippery
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Bitter
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Solutions Conduct Electricity
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Can Change the color of certain substances
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Uses of Bases
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Industry - Soap, Paper productions
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Household cleaners
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Drain Openers
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Fertilizers
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Medicines
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7 is pH of pure water
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> 7 greater basicity
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<7 greater acidity
1. acids taste like? (p. 401)
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sour, think of lemons (citric acid)
2. bases taste like?
3. all acids have
4. al bases have?
5. acid/base indicators?
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