Vocabulary
What is a solution?
A uniform mixture where particles are evenly spread at the molecular level.
What does it mean for a mixture to be heterogenous?
A heterogeneous mixture is a blend of two or more substances that do not combine evenly.
What does it mean for a mixture to be homogeneous?
A mixture with the same composition and properties throughout.
What is solubility?
The maximum amount of solute that dissolves in a given solvent.
What is a concentration?
The amount of solute dissolved in a specific volume of solvent.
What is a solute?
The substance that dissolves, like salt, sugar, or powdered drink mix.
Give an example of a heterogeneous mixture.
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What is the difference between a solute and a solvent?
A solvent is the ingredient that gets dissolved and the solvent is the liquid that does the dissolving.
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What doe sit mean if something is unsaturated?
More powder can easily dissolve in the liquid.
What is a solvent?
The liquid that dissolves the solute; water is the universal solvent.
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What is an example of a gaseous homogeneous solution and what are its components?
Air (Nitrogen solvent; oxygen/argon solutes)
What does it mean for something to dissolve?
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What is a mixture?
Substances physically combined without chemical bonding.
What is separation?
Physical process isolating components from each other.
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Does heat change solubility? Why or why not?
Yes because when a liquid warms up, its molecules move faster and spread farther apart.
What does it mean if something is precipitated?
Extra solute falls to the bottom undissolved.
What is saturation?
The state when no additional solute can dissolve.
What are some physical traits of heterogeneous mixtures that allow them to be separated without chemical reactions?
Size, density, and magnetism
What is an example of a solid homogeneous mixture and what are its components?
Bronze: Solid copper/tin solution
Why is it that if you put too much powder into a liquid, some powder does not dissolve and gathers at the bottom?
Water molecules have limited empty space between them to hold dissolved particles.
Fill in the blank: Solvent molecules surround ______ _________. Once every solvent molecule is occupied, extra particles gather at the ____.
solute particles, base