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18 Cards in this Set
- Front
- Back
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Name three characteristics of polar molecules
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>produced through electronegativity
>have partial changes >include water |
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Name a nonpolar molecule
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CH4
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Example of Polar molecules
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H2O, C6H12O6
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Water and vinegar....
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are pairs of solutions that will dissolve each other
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Which pairs do not dissolve each other?
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>oil and water
>water and oil |
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What is
> a result of cohesion? > causes belly flop to hurt >allows the basilisk lizard to run across water |
surface tension of water
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What causes capillary action and the formation of meniscus?
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Adhesion
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Water-loving molecules are....
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Hydrophyllic molecules
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Do Hydrophobic molecules dissolve in water ?
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No, they are water-fearing and do not dissolve
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What can increase the number of protons in water?
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Acids in water
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What releases hydroxide ions?
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Bases in water
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The PH scale measures the ...
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. (H+) in water
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0-6.9 indicates acid and 7.1-14 indicates a base
Is this a true or a false staement about the PH scale ? |
It is true
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Does the PH scale go from 0-10?
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No, this is a false statement.
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In an iced tea solution, name the 2 parts that make up the solution
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Solvent : H20
Solute : iced tea mix |
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Why is salt (NaCl) hydrophhlic?
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it is made of ions which dissolve in H20
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If the Ph of water is 7, what happens to it when a base is added? Why?
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The Ph increases since bases
donate 0H |
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Give an example of what happens to the PH when an acid is added to a basic solution?
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the solution is neutralized
since H20 and salt form |
