Science final S2

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Physical Science

9th

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70 Terms

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Room temp
20C 70F
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Body temp
37C 98.6F
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H20 freezes
0C 32F
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H20 boils
100C 212F
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Does the amount of chemical affect its FP?
False it does not affect its FP
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Do most liquids have different BP?
true they have different BP
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is Boling Point a physical property?
true it is a physical property
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Is density a physical property?
true density is a physical property
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Is FP a physical property?
true FP is a physical property
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The density of H20 is 1.0g/cc
True H20’s density is 1.0
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Most chemicals have different FP
True different FP
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Bases turn Red Litmus paper______
Blue
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Acids turn Blue Litmus paper______
Red
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Ph scale
Below 7= Acid

Exactly 7= Neutral

Above 7= Base

\
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Ph paper turns Red/Orange in
Acids
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Ph paper turns green to dark blue in
Bases
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Ph paper turns light green in
Neutral
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When acids and Bases are in Neutral they form
Salts and water others
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Citric acid
Sour salt
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Sodium Chloride
Table salt
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Isopropyl alcohol
Rubbing alcohol
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Glucose
Type of sugar
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Methyl Alcohol
Burner fuel
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Ethyl Alcohol
Drinking Alcohol
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Rock Candy
Sugar Crystals
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solid dissolves better in
Hot water
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Gas dissolves better in
Cold water
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Sitting helps solid
Dissolve
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one solid dissolves worse as the water gets
Warmer
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Chemical properties-
Properties that cause/result in chemical changes. Ex: flammability
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Physical Properties
Properties where matter doesn’t change when it is Measured. Ex: density
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Cu
Copper
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Na
Sodium
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W
Tungsten
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pH 7
Neutral
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pH 11
A base
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ph 4
An acid
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Ag
Silver
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Au
Gold
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Fe
Iron
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.0032g/cc
A gas density
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11\.3g/cc
Solids density
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0\.8g/cc
A liquid density
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Mg
Magnesium
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Zn
Zinc
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Sn
Tin
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Measured in grams
Mass
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Measured in CCs
Volume of liquid
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Density of H20
1\.00g/cc if pure
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Al
Aluminum
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Control
Normal
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Up arrow
Gas formed
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Down arrow
New solids forms
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NR
No reaction
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Cents symbol
Color change
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Catalyst
Speeds up reaction
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Inhibitor
Slows reaction
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Lab aprons found in drawer #
1
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Bunsen burners found in drawer #
2
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Measures exact volumes of liquids with
Graduated cylinder
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Used chemicals are NOT thrown in the
Sink
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Electrons have
Negative charges
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Atomic # same as
Amount of protons
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Atomic mass - atomic # =
Neutrons
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Protons
Positive
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Electrons
Negative
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Boling, density, FP,
Physical properties
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Co2 turns limewater
Cloudy
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Air is mostly
Nitrogen
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H2 is an
Explosive