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15
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What does John Dalton’s atomic theory propose?
Matter is made of light.
Matter is made of tiny pieces called atoms.
Matter is made of molecules.
Matter is made of energy.
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15
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How do chemists determine if a gemstone is a real diamond?
By looking for the presence of carbon atoms.
By examining its price.
By checking if it contains zirconium.
By testing if it can dissolve in water.
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15
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How many different types of atoms are currently known?
150
50
118
100
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15
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Why are diamonds harder than cubic zirconia?
Diamonds are made of pure carbon atoms packed tightly.
Cubic zirconia is a liquid at high temperatures.
Cubic zirconia contains impurities.
Diamonds are heavier.
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15
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Why does ethyl butyrate smell pleasant like oranges?
It is made of carbon and hydrogen atoms.
It is found naturally in many fruits.
It is a processed compound made in a lab.
It has the same atomic structure as oxygen.
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15
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What is cubic zirconia made of?
Pure carbon
Carbon and hydrogen atoms
Groups of zirconium and oxygen atoms
Molecules of gold
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trap
No points!
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seesaw
Swap points!
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fairy
Take points!
5
10
15
20
25
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baam
Lose 20 points!
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baam
Lose 20 points!
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gold
Win 50 points!
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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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What makes Isovaleric acid smell unpleasant?
It is colorless.
It is made of sulfur atoms.
It is a solid at room temperature.
It has a slightly different atomic structure than ethyl buty
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15
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What is the difference between molecules and extended structures?
Molecules are always solid; extended structures are liquid.
Molecules are separate units; extended structures are interc
Molecules contain more oxygen than extended structures.
Molecules are larger than extended structures.
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15
×
What makes substances have different properties?
The temperature at which they are found.
Their atomic weight.
The number and type of atoms that repeat in their structure.
Their shape and size.
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15
×
What does the chemical formula C6H12O2 represent?
Ethyl butyrate
Water
Carbon dioxide
Isovaleric acid
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eraser
Reset score!
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gold
Win 50 points!
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fairy
Take points!
5
10
15
20
25
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lifesaver
Give 25 points!
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15
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Which substance is an example of an extended structure?
Air
Water
Diamond
Ethyl butyrate
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15
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What are diamonds made of?
Hydrogen and oxygen atoms
Zirconium and oxygen atoms
Nitrogen atoms
Carbon atoms
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baam
Lose 15 points!
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shark
Other team loses 10 points!
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fairy
Take points!
5
10
15
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25
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baam
Lose 10 points!
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