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20
×
What is the difference between a heterogeneous mixture and a homogeneous mixture?
het. unevenly distr. hom. evenly distributed
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20
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Why is it relatively easy to separate a mixture (consider ALL mixtures)?
Each substance keeps its properties - not chemically combined.
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trap
No points!
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gold
Win 50 points!
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rocket
Go to first place!
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thief
Give points!
5
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25
15
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How many substances make up a mixture?
two or more
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eraser
Reset score!
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magnet
Take 25 points!
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shark
Other team loses 20 points!
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banana
Go to last place!
Oops!
15
×
True or False? Alloys are not considered solutions because they are made of two or more metals.
false
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20
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If you were to magnify a section of a solution and you took two separate samples of the same solution, what would you see?
They would be the same.
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15
×
True or False? A mixture is a physical combination of two or more elements.
false
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thief
Give points!
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25
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seesaw
Swap 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 do you call a mixture of two or more metals?
an alloy
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15
×
True or False? A salad is a solution.
false
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20
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Why would anyone in their right mind want to mix two metals together?
To make bronze/steel - tools, weapons, sculptures, etc.
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25
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Why CAN you represent a compound with a chemical formula?
It has a definite composition.
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20
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Identify THREE ways you could separate a solution.
Melt it. Boil it. Allow it to evaporate.
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25
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Other than a solid dissolving into a liquid, give TWO other examples of solutions.
gas and liquid - metal and metal
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15
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What is the solvent in seawater?
water
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