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Teams
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10
×
What does a heating curve show?
how temperature changes with time during heating.
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5
×
What is a mixture?
a combination of substances not chemically bonded.
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20
×
Why do isotopes have similar chemical properties?
they have the same number of electrons.
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5
×
Which state of matter has neither fixed shape nor fixed volume?
gas.
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×
thief
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5
10
15
20
25
×
magnet
Take 25 points!
Okay!
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gift
Win 20 points!
Okay!
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thief
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5
10
15
20
25
×
seesaw
Swap points!
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rocket
Go to first place!
Okay!
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rocket
Go to first place!
Okay!
×
baam
Lose 25 points!
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5
×
Which state of matter flows and has a fixed volume but no fixed shape?
liquid.
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5
×
What happens to the volume of a gas when pressure increases (at constant temperature)?
it decreases.
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5
×
What is the process of a liquid changing into a gas called?
boiling or evaporation.
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10
×
What is an element?
a pure substance made of one type of atom.
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15
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What is a covalent bond?
a shared pair of electrons between atoms.
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10
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What is a cation?
a positively charged ion.
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5
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How are the particles arranged in a solid?
closely packed in a regular pattern.
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15
×
What is an ionic bond?
a strong attraction between oppositely charged ions.
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5
×
How do particles move in a gas?
they move rapidly and randomly.
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×
boom
Lose 50 points!
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rocket
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rocket
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thief
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5
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25
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