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Ch. 13 - Lesson 3 Review Game
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True or False? A solution is a type of mixture.
true
True or False? A mixture is a physical combination of two or more elements.
false
True or False? Bronze is an alloy made of copper and tin.
true
True or False? A salad is a solution.
false
True or False? Alloys are not considered solutions because they are made of two or more metals.
false
True or False? In many mixtures, the different materials are uniformly distributed.
false
Why would I manipulate the amount of carbon in my steel?
to affect the hardness
Why would anyone in their right mind want to mix two metals together?
To make bronze/steel - tools, weapons, sculptures, etc.
What do you call a mixture of two or more metals?
an alloy
Identify THREE ways you could separate a solution.
Melt it. Boil it. Allow it to evaporate.
Why would a filter NOT be the best way to separate a solution?
The particles/molecules are too small to be trapped in most filters.
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.
Other than a solid dissolving into a liquid, give TWO other examples of solutions.
gas and liquid - metal and metal
True or False? Solutions always involve a solid dissolving into a liquid.
false
What is the solute in seawater?
salt
What is the solvent in seawater?
water
Which ONE is not true for a solution? (heterogeneous - homogeneous - mixed at atomic level)
heterogeneous
Why CAN you represent a compound with a chemical formula?
It has a definite composition.
Why CAN’T you represent a mixture with a chemical formula?
It does not have a definite composition.
Why is it relatively easy to separate a mixture (consider ALL mixtures)?
Each substance keeps its properties - not chemically combined.
Give an example of a homogeneous mixture.
various answers
Give an example of a heterogeneous mixture.
various answers
What is the difference between a heterogeneous mixture and a homogeneous mixture?
het. unevenly distr. hom. evenly distributed
What is a difference between a mixture and a compound?
mixture - physica/different composition l compound - chemical/same composition
How many substances make up a mixture?
two or more
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