Post on 13-Jan-2016
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
MATTER
• Notes Pages 1-2
BUILDING BLOCKS OF MATTER
•Matter – Anything that takes up space and has mass
BUILDING BLOCKS OF MATTER
•Matter – Anything that takes up space and has mass•Mass – Measure of amount of matter • Measured in grams, g
WEIGHT V. MASS
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
ATOMS
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
ATOM OF GOLD (AU)
ATOMS OF GOLD (AU)
ELEMENTAL GOLD
BULLION: PURE SUBSTANCE (GOLD) WITH ONLY ONE TYPE OF ATOM
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
COMPOUNDS
• Water, H2O, contains two elements:• Oxygen and Hydrogen
• Caffeine, C8H10N4O2, contains four elements:
• Carbon, Hydrogen, Oxygen, and Nitrogen
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
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
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.
ELEMENT, COMPOUND, OR MIXTURE?
Rocks
ELEMENT, COMPOUND, OR MIXTURE?
Rocks
ELEMENT, COMPOUND, OR MIXTURE?
Copper
ELEMENT, COMPOUND, OR MIXTURE?
CopperCu
ELEMENT, COMPOUND, OR MIXTURE?
Jelly Beans
ELEMENT, COMPOUND, OR MIXTURE?
Jelly Beans
ELEMENT, COMPOUND, OR MIXTURE?
Table Sugar
ELEMENT, COMPOUND, OR MIXTURE?
Table Sugar
C 12H 22
O 11
ELEMENT, COMPOUND, OR MIXTURE?
Diamond
ELEMENT, COMPOUND, OR MIXTURE?
DiamondC
ELEMENT, COMPOUND, OR MIXTURE?
Tea
ELEMENT, COMPOUND, OR MIXTURE?
Tea
ELEMENT, COMPOUND, OR MIXTURE?
Salt
ELEMENT, COMPOUND, OR MIXTURE?
SaltNaCl
ELEMENT, COMPOUND, OR MIXTURE?
Neon Gas
ELEMENT, COMPOUND, OR MIXTURE?
Neon GasNe
ELEMENT, COMPOUND, OR MIXTURE?
Salad
ELEMENT, COMPOUND, OR MIXTURE?
Salad
ELEMENT, COMPOUND, OR MIXTURE?
Pure Water
ELEMENT, COMPOUND, OR MIXTURE?
Pure WaterH 2O
ELEMENT, COMPOUND, OR MIXTURE?
Aluminum
ELEMENT, COMPOUND, OR MIXTURE?
AluminumAl
ELEMENT, COMPOUND, OR MIXTURE?
Lemonade
ELEMENT, COMPOUND, OR MIXTURE?
Lemonade
ELEMENT, COMPOUND, OR MIXTURE?
Silver
ELEMENT, COMPOUND, OR MIXTURE?
Silver
Ag
ELEMENT, COMPOUND, OR MIXTURE?
Sand
ELEMENT, COMPOUND, OR MIXTURE?
Sand