Chapter 13
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Pure Sustance | A material that is composed of only one type of particle; examples of a pure substance include gold, oxygen and water.
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| Mixture | A material made up of at least two different pure substances.
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| Solution | homogeneous mixture composed of two or more substances
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| heterogeneous and homogeneous solutions | A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases.
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| suspension | a heterogeneous mixture containing solid particles that are sufficiently large for sedimentation. Usually they must be larger than one micrometer.
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| colloid | a solution that has particles ranging between 1 and 1000 nanometers in diameter, yet are still able to remain evenly distributed throughout the solution.
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| solute and solvent | solute is a substance dissolved in another substance, known as a solvent.
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| aqueous solution | a solution in which the solvent is water.
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| molarity | The number of moles of solute (the material dissolved) per liter of solution. Used to express the concentration of a solution.
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| solubility | a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.
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| soluble and insoluble | soluble - capable of being dissolved in some solvent (usually water)
insoluble -incapable of being dissolved
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| miscible and immiscible | immiscible- Incapable of being mixed or blended together. Immiscible liquids that are shaken together eventually separate into layers. Oil and water are immiscible.
miscible-liquids mix together well
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| "Like dissolves like" | an expression used by chemists to remember how some solvents work. It refers to "polar" and "nonpolar" solvents and solutes. Basic example: Water is polar. Oil is non polar. Water will not dissolve oil.
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| unsaturated | a chemical compound that contains carbon-carbon double bonds or triple bonds, such as those found in alkenes or alkynes, respectively.
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| saturated | a chemical compound that has a chain of carbon atoms linked together by single bonds. Alkanes are saturated hydrocarbons.
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| supersaturated | A solution that contains a higher than saturation concentration of solute; slight disturbance or seeding causes crystallization of excess solute.
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| dissociation | a general process in which molecules (or ionic compounds such as salts, or complexes) separate or split into smaller particles such as atoms, ions or radicals, usually in a reversible manner.
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| Henry's law | gas law
"At a constant temperature, the amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid."
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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