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36 Cards in this Set
- Front
- Back
- 3rd side (hint)
Matter
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anything that has mass and occupies space
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Property
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any characteristic that allows us to recognize and distinguish a particular type of matter
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Element
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comprises matter; the most basic elementary substance in that it cannot be decomposed into simpler substances
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Atom
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the most basic unit of matter
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Molecule
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two or more atoms joined together in a specific shape
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States of Matter
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solid
liquid gas |
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Gas
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aka VAPOR
a substance with no fixed volume or shape |
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Liquid
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a substance with a distinct volume independent of its contained, but no specific shape
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Solid
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a substance with both definite shape and volume
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Pure Substance
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matter that has distinct properties and a composition that does not vary from sample to sample
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Compound
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substances composed of two or more elements
(therefore, they must contain two or more kinds of atoms) |
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Mixture
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combination of two or more substances in which each substance retains its own chemical identity
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Solution
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a mixture of substances that has a uniform composition
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Physical Properties
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properties that are measured without changing the composition of a substance
EX: color, density,odor, etc. |
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Chemical Properties
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properties that describe a composition and its reactivity
EX: flammability |
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Physical Changes
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a substance changes its physical appearance but not its composition
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Chemical Rxn (reaction)
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when a substance is transformed into a chemically different substance
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SI Units
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preferred units for scientific measurements
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Mass
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kg (kilogram)
measure of the amount of material in an object |
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Length
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m (meter)
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Time
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s (seconds)
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Temperature
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K (Kelvin) - SI Unit
K = C + 273.15 C (Celsius) - metric unit C = 5/9(F-32) measure of the hotness or coldness of an object |
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Amount of Substance
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mole
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Giga
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G
10^9 |
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Mega
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M
10^6 |
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Kilo
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k
10^3 |
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Deci
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d
10^-1 |
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Centi
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c
10^-2 |
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Mili
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m
10^-3 |
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Micro
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u (mu)
10^-6 |
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Nano
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n
10^-9 |
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Density
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a property of matter that is used to characterize substances
D=m/v |
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1 in
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2.54 cm
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1 lb
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454 g
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1 gallon
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3.785 L
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1 mL
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1 cm^3
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0.001 L
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