What is geographical condition of america

। Geographical Condition of America (United States) > 1. Basic Political & General Information Official Name:  United States of America Capital:   Washington, D.C. Number of States:  50 states Currency:  US Dollar (USD) National Language:  No official federal language; English is most widely spoken Other Languages:  Spanish, Chinese, Tagalog, French, German, etc. 2. Location and Boundaries The  United States  is located in  North America . Geographical Position Latitudes: 24°N to 49°N Longitudes: 66°W to 125°W Borders North:  Canada South:  Mexico East:   Atlantic Ocean West:   Pacific Ocean Southeast:   Gulf of Mexico Northwest (Alaska):   Arctic Ocean 3. Area and Size Total Area:  9,833,520 sq km Land Area:  9,147,420 sq km Water Area:  685,100 sq km It is the  3rd largest country  in the world (after Russia and Canada). 4. Physical Features & Relief The USA has very diverse...
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comparison between acid and base


                                   acid 

                                 
1.  Acid is sour in taste,  Base is bitter in taste.

2.   Acid turns blue litmus to red,  Bases turns red litmus to  blue.

3.  Acis PH is  less than  7,  Base  PH is greater than  7. 

4.   It  is produces   H+ ion ( hydrogen ion) solution, Base  produces  OH ion  in  slution.

5.   Corrosive to metals,  Base is slippery to touch .

6.   React with  base  to form salt  and water, React with acid  to form salt and water.

7.  Example of acid- HCL, H2SO4.  Example of base NAOH,KOH.

8.  Conducts electricity in solution , in base  is also conducts electricity in   solution.

9.  Acid react  with  carbonates to  release CO2,  Base  does not  reacts with carbonates .

10.   Acid founds in citrus  fruits ( e.g-  Lemon ) Base found in soap  or detergents.

11.   Proton donors  ( Arrhenius  definition),  in Base -Proton  acceptor( Arrhenius definition).

12.   PH indicator-  Methyl orange  turns red, In base indicator -  Phenolphthalein turns pink .

13.  Used in batteries (e.g- Sulfuric acid ), Base  used in  antacids  ( e.g  magnesium hydroxide)

14.   Acid- Neutralizes  bases ,  base-  neutralized  Acid .

15.   Acids - Generally corrosive,  Base   can  be  caustic.

 


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