Monday, July 27, 2009

Please help..?

help me finish this please?



best answer ten points thank you soo much



1: What does a pH of less than 7 indicate?



An acidic solution.



A basic solution.



2: What does a pH of greater than 7 indicate?



An acidic solution.



A basic solution.



3: What is the Hydronium ion concentration in a given solution equal to in terms of pH?



The hydronium ion is represented by the following relationship: [ H3O+]= 10 -pH



The hydronium ion is represented by the following relationship: [ H2O+]= 8 -pH



4: Name 3 natural acid deposition sources.



Forest Fires, Volcanic Eruption, Lightning.



Human hair, Acid rain, Popcorn



5: Name 3 artificial acid deposition sources.



Petroleum refining, lightning, and forest fires.



Cof fossil fuels, smelting of ores, and sewage treatment.



6: What are the 3 main gasses that result from the deposition of acid?



Three of the main gasses that can result from acid deposition are: Carbon Monoxide, Sodium Chloride, and Hydrogen Peroxide.



Three of the main gasses that can result from acid deposition are: Carbon dioxide, Nitrogen Oxides, and Sulfur Dioxide.



7: What are some things humans can do to reduce the current acid deposition problems?



Ways to decrease the amount of acid deposition are to recycle old newspaper, exercise regularly, and eat healthier meals.



Ways to decrease the amount of acid deposition are to cut back on combustion, smelting, refining and safer use of cleaning agents.



8: Areas of greatest acidity may be found in



Northeastern U.S.



Southwestern U.S.



9: The Appalachian Mountains were one day as high and pointed as the Rocky Mountains.



True



false



10: Historic buildings in New England and Canada are not in danger of being ruined by their areas of high acidity.



True



False



Please help..?

a ph less than seven means its acidic

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