today is september 27, 2013
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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. - PowerPoint PPT PresentationTRANSCRIPT
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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?
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Elements• Pure substance that cannot be separated into
simpler substance by physical or chemical means.• Only has ONE CAPITAL LETTER
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CompoundsPure 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.
H2O CO2NaCl
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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
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Element, Compound, or Mixture?Cereal
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Element, Compound, or Mixture?Cereal
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Element, Compound, or Mixture?
Copper
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Element, Compound, or Mixture?
CopperCu
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Element, Compound, or Mixture?
Jelly Beans
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Element, Compound, or Mixture?
Jelly Beans
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Element, Compound, or Mixture?
Table Sugar
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Element, Compound, or Mixture?
Table Sugar
C 12H 22O 11
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Element, Compound, or Mixture?
Diamond
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Element, Compound, or Mixture?
DiamondC
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Element, Compound, or Mixture?
Tea
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Element, Compound, or Mixture?
Tea
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Element, Compound, or Mixture?
Salt
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Element, Compound, or Mixture?
SaltNaCl
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Element, Compound, or Mixture?
Neon Gas
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Element, Compound, or Mixture?
Neon GasNe
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Element, Compound, or Mixture?
Salad
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Element, Compound, or Mixture?
Salad
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Element, Compound, or Mixture?
Pure Water
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Element, Compound, or Mixture?
Pure WaterH 2O
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Element, Compound, or Mixture?
Aluminum
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Element, Compound, or Mixture?
AluminumAl
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Element, Compound, or Mixture?
Lemonade
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Element, Compound, or Mixture?
Lemonade
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Element, Compound, or Mixture?
Silver
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Element, Compound, or Mixture?
SilverAg
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Element, Compound, or Mixture?
Sand
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Element, Compound, or Mixture?
Sand
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Element or Compound?
Cl3
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Element or Compound?
Cl3
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Element or Compound?
NH3
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Element or Compound?
NH3
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Element or Compound?
CH4
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Element or Compound?
CH4
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Element or Compound?
N4
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Element or Compound?
N4
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Element or Compound?
FeN4
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Element or Compound?
FeN4
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CO2
CO2CO2
CO2
NN
N
N
NH2O
H2O
H2O
H2O
Element, Compound, or Mixture?
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CO2
CO2CO2
CO2
NN
N
N
NH2O
H2O
H2O
H2O
Element, Compound, or Mixture?
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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!