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Today is September 27, 2013. Get your notebook off the shelf and finish the questions from our Molecule Activity on Page 23. Make sure everything is glued in and DONE in your notebook. You have a notebook check today.
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Today is September 27, 2013 • Get your notebook off the shelf and finish the questions from our Molecule Activity on Page 23. Make sure everything is glued in and DONE in your notebook. You have a notebook check today. • You also have a quiz today! So if your done, review your Reading and Graphic Organizer to study for this quiz. • You need to know: • What’s a mixture? • What’s a compound? • What‘s a element? • What’s a molecule?
Elements Pure substance that cannot be separated into simpler substance by physical or chemical means. Only has ONE CAPITAL LETTER
H2O CO2 NaCl Compounds Pure substance composed of two or more different elements joined by chemical bonds. • Has a chemical formula • Can only be separated by chemical means, not physically • Compounds have their own physical and chemical properties that are different from other substances • The Chemical formula has TWO OR MORE CAPITAL LETTERS.
Mixtures A combination of two or more pure substances that are not chemically combined. substances held together by physical forces, not chemical No chemical change takes place Each item retains its properties in the mixture They can be separated physically Chem4kids.com
Element, Compound, or Mixture? Cu Copper
Element, Compound, or Mixture? Jelly Beans
Element, Compound, or Mixture? Jelly Beans
Element, Compound, or Mixture? Table Sugar
Element, Compound, or Mixture? C12H22O11 Table Sugar
Element, Compound, or Mixture? Diamond
Element, Compound, or Mixture? C Diamond
Element, Compound, or Mixture? NaCl Salt
Element, Compound, or Mixture? Neon Gas
Element, Compound, or Mixture? Ne Neon Gas
Element, Compound, or Mixture? Pure Water
Element, Compound, or Mixture? H2O Pure Water
Element, Compound, or Mixture? Aluminum
Element, Compound, or Mixture? Al Aluminum
Element, Compound, or Mixture? Lemonade
Element, Compound, or Mixture? Lemonade
Element, Compound, or Mixture? Ag Silver
Element or Compound? FeN4
Element or Compound? FeN4
Element, Compound, or Mixture? N H2O N CO2 N H2O CO2 CO2 N H2O H2O CO2 N
Element, Compound, or Mixture? N H2O N CO2 N H2O CO2 CO2 N H2O H2O CO2 N
Good Luck! • If you finish you may read or do work from another class. • If you have finished your book and have no work go to https://todaysmeet.com/chemical • Click on the link under Listen and watch the video on fireworks. YOU MUST USE YOUR HEADPHONES!