Share Ch. 13 - Lesson 3 Review Game
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How many substances make up a mixture?
two or more
What is a difference between a mixture and a compound?
mixture - physica/different composition l compound - chemical/same composition
What is the difference between a heterogeneous mixture and a homogeneous mixture?
het. unevenly distr. hom. evenly distributed
Give an example of a heterogeneous mixture.
various answers
Give an example of a homogeneous mixture.
various answers
Why is it relatively easy to separate a mixture (consider ALL mixtures)?
Each substance keeps its properties - not chemically combined.
Why CAN’T you represent a mixture with a chemical formula?
It does not have a definite composition.
Why CAN you represent a compound with a chemical formula?
It has a definite composition.
Which ONE is not true for a solution? (heterogeneous - homogeneous - mixed at atomic level)
heterogeneous
What is the solvent in seawater?
water
What is the solute in seawater?
salt
True or False? Solutions always involve a solid dissolving into a liquid.
false
Other than a solid dissolving into a liquid, give TWO other examples of solutions.
gas and liquid - metal and metal
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.
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.
Identify THREE ways you could separate a solution.
Melt it. Boil it. Allow it to evaporate.
