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12 Cards in this Set
- Front
- Back
Why is water the Universal Solvent?
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Because so many substances are soluable in water. Water is a polar molecule
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What is the amount of water on Earth?
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97% Salt Water
3% Fresh (2% Frozen) 1% divided between the atmosphere, lakes, rivers, streams, and groundwater. |
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What is an acid?
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Sour taste, react with metals to produce H2, contains hydrogen
Using indicators: Phenolphthalein(colorless paper): remains colorless then an acid Litmus paper: Blue litmus-red in acid---red litmus--colorless acid pH paper: measures how acidic the solution is |
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What is a base?
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Bitter taste, slippery to touch, dissolves fats and oils, contains hydroxide ion
Using indicators: Phenolphthalein (coloress paper): turns bright pink in a base Litmus paper: blue litmus-stays blue for base--red litmus--turns blue for base |
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What is Acid Rain?
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Rain or snow with a pH value that is less than the pH of unpolluted precipitation.
-CO2 is in the air and causes a natural acid rain -Acid Rain are pollutants that are caused by car exhaust and industry. |
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What causes Natural Acid Rain?
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CO2 is in the air and causes a natural acid rain.
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What are the 8 parts of the Water Cycle?
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1 Precipitation
2 Surface Runoff 3 Infiltration or Percolation 4 Absorption 5 Groundwater 6 Evaporation 7 Transpiration 8 Condensation |
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What is the water or hydrological cycle?
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Water that is naturally recycled in a continuous process.
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What drives the water cycle?
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The sun is the source of energy which drives the water cycle.
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To obtain clean drinking water...
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1 Filtration
2 Coagulation 3 Second Filtration 4 Chlorination 5 Aeration 6 Additional Treatment such as adding fluoride. |
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To treat wastewater...
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1 Gravity powered
2 Primary Treatment 3 Secondary Treatment 4 Additional treatment to remove phosphorous and nitrogen and may add chlorine to kill any remaining bacteria. |
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What does groundwater represent?
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The largest reservoir of fresh water that is readily available to humans.
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