Unit 1: Matter and Change
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Transcript of Unit 1: Matter and Change
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C H E M I S T R Y B H S 2 0 1 3 - 2 0 1 3
M S . J E N S E N
UNIT 1: MATTER AND CHANGE
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MATTER
• Notes Pages 1-2
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BUILDING BLOCKS OF MATTER
•Matter – Anything that takes up space and has mass
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BUILDING BLOCKS OF MATTER
•Matter – Anything that takes up space and has mass•Mass – Measure of amount of matter • Measured in grams, g
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WEIGHT V. MASS
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BUILDING BLOCKS OF MATTER
•Matter – Anything that takes up space and has mass•Mass – Measure of amount of matter (grams)• Atom – Smallest part of an element that maintains the properties of that element• Comes from Greek “átomos”, which means
“uncuttable” or “the smallest indivisible particle of matter”• Was coined in 450 BCE by Democritus
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ATOMS
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BUILDING BLOCKS OF MATTER
•Matter – Anything that takes up space and has mass•Mass – Measure of amount of matter (grams)• Atom – Smallest part of an element that maintains the properties of that element• Element – Pure substance with only one type of atom• Cannot be separated into a simpler substance
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ATOM OF GOLD (AU)
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ATOMS OF GOLD (AU)
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ELEMENTAL GOLD
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BULLION: PURE SUBSTANCE (GOLD) WITH ONLY ONE TYPE OF ATOM
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BUILDING BLOCKS OF MATTER
•Matter – Anything that takes up space and has mass•Mass – Measure of amount of matter (grams)• Atom – Smallest part of an element that maintains the properties of that element• Element – Pure substance with only one type of atom• Compound – Pure substance, atoms of two or more elements are chemically bonded
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COMPOUNDS
• Water, H2O, contains two elements:• Oxygen and Hydrogen
• Caffeine, C8H10N4O2, contains four elements:• Carbon, Hydrogen, Oxygen, and Nitrogen
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BUILDING BLOCKS OF MATTER• Matter – Anything that takes up space and has mass• Mass – Measure of amount of matter (grams)• Atom – Smallest part of an element that maintains
the properties of that element• Element – Pure substance with only one type of atom• Compound – Pure substance, atoms of two or more
elements are chemically bonded• Mixture – A combination of two or more pure
substances that are not chemically bonded
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MIXTURES
• Heterogeneous Mixture: • Components that make up the mixture are not uniform• Rocks, oil and water, soup, pizza
• Homogenous Mixture: • Components that make up the mixture are uniformly
distributed throughout• Air, sugar water
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CAN YOU IDENTIFY THE FOLLOWING?
You will be shown a series of photos. Tell if each photo represents an item composed of an element, compound, or mixture.
Review:• An element contains just one type of atom. • A compound contains two or more different
atoms joined together. • A mixture contains two or more different
substances that are only physically joined together, not chemically.• A mixture can contain both elements and compounds.
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ELEMENT, COMPOUND, OR MIXTURE?Rocks
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ELEMENT, COMPOUND, OR MIXTURE?Rocks
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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 SugarC 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