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30 Cards in this Set
- Front
- Back
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Sources of fresh water
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Ponds, rivers, lakes, streams, aquafers.
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Amount of available fresh water is _________
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Less than 1%
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Definition of molarity
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Moles per liter
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Definition of density
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Equals mass divided by volume
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Why does ice float in water?
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Because it is less dense than water
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What is specific heat?
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The quantity of heat energy that must be absorbed to increase the temperature of 1g of a substance by 1 degree C.
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What is the specific heat of water?
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4.18 J/g degrees C
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What is hard water?
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Water that contains high concentrations of dissolved calcium and magnesium ions.
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What is soap?
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Contains two parts: sodium ion (Na+) and a long hydrocarbon chain with a negatively charged ionic end.
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A substance that releases hydrogen ions, H+, in aqueous solutions.
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Acid
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Any compound that produces hydroxide ions, OH-, in aqueous solutions.
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Base
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Rain that is more acidic and has a lower pH value than "normal" rain.
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Acid rain
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The deposition of either wet or dry forms of acidic substances from the atmosphere to the Earth. The wet forms include rain, snow, fog, and cloud-like suspensions of microscopic water droplets and may be more acidic and damaging than acid rain.
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Acid deposition
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Literally "an acid without water". For example, the nonmetallic oxide SO3 forms an acid when reacted with water.
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Acid anhydride
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A number, usually between 0 and 14, that indicates the acidity of a solution
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pH
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A chemical reation in which the hydrogen ions from an acid combine with the hydroxide ions from a base to form molecules of water.
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Normality/ neutral
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1 normal of acid cancels ____ normal of base everytime
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1
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CO2 + H20 =H2CO3 which is?
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carbonic acid
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Acid or base :H+
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Acid
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Acid or base: H3O+
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Acid
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Acid or base: hydronium ion
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Acid
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Acid or base: red litmus
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Acid
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Acid or base: sour
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Acid
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Acid or base: less than 7
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Acid
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Acid or base: OH-
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Base
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Acid or base: hydoxyl ion
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Base
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Acid or base: blue litmus
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Base
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Acid or base: bitter
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Base
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Acid or base: slippery
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Base
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Acid or base: greater than 7
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Base
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