Class Outline for Monday, April 18, 2005

  • Warm Up/Admin

  • Bridge Project Winners
  • Bridge Homework
  • Web site/Newsgroup
  • Reading for this week
    • review pages 398-400

    • acids, bases & salts p. 401-406

  • Vocabulary
  • Acids, acidity, bases, basicity, pH, indicators, corrosive, ions, salts, hydroxide

  • Baseball Questions
  • use any of this week's reading

  • LAB Safety Rules

 

  • Introduction to Acids & Bases

    • Myth Busters - Menudo
    • Properties
    • Uses
  • 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).
  • Properties of Acids

  • Sour taste
  • Corrosive
  • React with some metals to produce H2
  • Solutions Conduct Electricity
  • Can Change the Color of a Substance
  • Uses of Acids

    • Industry - Chemical processing - paint, fertilizers, rubber/plastics
    • Manufacturing - metal processing etching/plating, cleaning
    • Natural Acids used for Digestion
    • Cleaning/Decontaminating Water
    • Foods
    • Weak/Strong Acids
  • Properties of Bases

    • Slippery
    • Bitter
    • Solutions Conduct Electricity
    • Can Change the color of certain substances
  • Uses of Bases

  • Industry - Soap, Paper productions
  • Household cleaners
  • Drain Openers
  • Fertilizers
  • Medicines
  • pH Scale

  • 7 is pH of pure water
  • > 7 greater basicity
  • <7 greater acidity
  • II. Research Questions

1. acids taste like? (p. 401)

  • sour, think of lemons (citric acid)

2. bases taste like?

  • bitter

3. all acids have

4. al bases have?

5. acid/base indicators?

 

Google  

Copyright 2005 -  S. B. EglI