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Matter and Change - Chapter 2 (3 states of matter (Liquid (No Definite…
Matter and Change - Chapter 2
3 states of matter
Liquid
No Definite Shape (Will take the shape of it's container)
Definite Volume (Can't
be compressed)
Particles: Can move out of place and around others (its ability to flow/pour)
Gas
No Definite Volume (Can be
compressed into a smaller
space)
No Definite Shape (Will take
the shape of its container)
Particles: Enough energy to separate from others, bouncing around with empty space between the particles
Solid
Particles: Vibrate against each other, cannot move out of place
Definite Volume (Can't be compressed)
Definite Shape (Won't take shape of container)
Mixtures
Seperating:
Mechanical
Distillation
Filtration
Def: Physical blend of more than one component.
2 Types
Homogeneous
AKA: Solution
Def: Composition IS the same throughout
uniform composition
Ex:
Air
Pure water
Rain
One phase
Heterogeneous
Def: Composition NOT the same throughout
NOT uniform
Ex:
Salad
Chex Mix
Milk and cereal
More than one phase
Element
Def: Simplest form of matter, has unique set of properties
Ex:
Gold
Hydrogen
Iron
Silver
Compound
Def: A substance containing 2 or more elements
Ex:
Water - H2O
Sugar - C6H12O6
Law of Conservation of Mass
IMPORTANT LAW OF NATURE
Law says: Mass can't be created nor destroyed. It will change
Chemical Reactions:
Chemical Property
Def: Ability to undergo a specific chemical change
Chemical Change:
Def: One or more substances
into one or more new substances
Start of Reaction:
Reactants
End of Reaction:
Products
Recognizing a Chemical Change
Transfer of energy
Light
Heat
Change in color
Production of a gas
New smell
Bubbles
Formation of a Precipitate
Little pieces of material in a liquid that were not there before
Describing Matter
Extensive Properties
Def: Depends on the amount of matter
Ex:
Mass
Volume
Intensive Properties
Def: Depends on what type of matter and what it's made up of
Ex:
Hardness
Density