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15
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What elements have complete outer shells? What do we call these?
He, Ne, Ar - Noble Gases
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15
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What is sublimation?
Phase change- solid to a gas without an intervening stage of a liquid.
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baam
Lose 25 points!
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fairy
Take points!
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25
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rocket
Go to first place!
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banana
Go to last place!
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15
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Magnetism
Force of attraction or repulsion between like or unlike poles.
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15
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What is chemistry?
The scientific study of matter, its properties, and interactions with other matter and energy.
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Specific Heat
The amount of heat needed to raise the temperature of a substance by 1 degree Celsius.
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lifesaver
Give 5 points!
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seesaw
Swap points!
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gift
Win 15 points!
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thief
Give points!
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25
15
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Density
The ratio of mass to volume (g/cm3 or g/mL)
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thief
Give points!
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25
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star
Double points!
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shark
Other team loses 25 points!
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lifesaver
Give 5 points!
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15
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What are valence electrons?
Electrons located on the outermost shell
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15
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Chemical Reaction
Change of a substance into a new one that has a different chemical identity.
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What does the atomic number represent?
Protons or Electrons
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Catalyst
a substance that causes or accelerates a chemical reaction. The catalyst was the yeast in elephant toothpaste.
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Chemical Reactivity
Describes how an element forms bonds with other elements. This is unique for each group/family.
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15
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What elements have 1 valence electron? What do we call these?
H, Li, Na, K - Alkali
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15
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What is matter?
Anything that has mass and volume.
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