Sounds Intresting ?

• The burning sensation we get from chilli peppers is because of a chemical called Capsaicin.
• Twenty percent of Earth's oxygen is produced by the Amazon forest. 
• A rubber tire is actually one single giant molecule.
•  Each time lightning strikes, some Ozone gas is produced, thus strengthening the Ozone Layer in the Earth's atmosphere.
• Honey does not spoil. 

Hot water freezes faster than cold water

Unlike any other element, helium does not solidify.

Aluminium is the most common metal in the Earth's crust. about 8 %

Graphite can be transformed into diamond by applying a temperature of 3000°C and pressure of 100,000 atm

most expensive substance

The element Californium is often called the most expensive substance in the world (as much as $68 million for one gram.)

chemistry

• A pure element can take many forms. For example, diamond and graphite both are forms of pure carbon
• The human body contains enough carbon to provide 'lead'  for about 9,000 pencils.
• The only two non-silvery metals are gold and copper.
• The IUPAC name for water, H₂O, is dihydrogen monoxide.
• Although you may consider gold to be rare, there is enough gold in the Earth's crust to cover the land surface of the planet knee-deep.

Year 2011 went good for chemistry!

As Two New Elements Are Discovered and made their place in Periodic table. These new elements are the heaviest elements yet to appear on the periodic table, with atomic masses of 289 and 292 atomic mass units, respectively.

Interesting Chemistry Facts

The only elements that are liquid at room temperature are bromine and mercury. 

Types of Reaction

There are Six main type of reactions 

Combustion :- oxygen combines with another compound to form water and carbon dioxide   

                        These reactions are exothermic, means produces heat 

                                   C₁₀H₈ + 12 O₂ ---> 10 CO₂ + 4 H₂O

  Synthesis          :- two or more simple compounds combine to form a more complicated one.

                                 

                               8 Fe + S₈ ---> 8 FeS

 Decomposition :- opposite of a synthesis reaction - a complex molecule breaks down to 

                                  make simpler ones.

2 H₂O ---> 2 H₂ + O₂

 Single displacement:  :-In this displacement of one atom or group of atom takes place

Mg + 2 H₂O ---> Mg(OH)₂ + H₂

 

 Double displacement::-In this displacement of two atoms or group of atoms takes place

Pb(NO₃)₂ + 2 KI ---> PbI₂ + 2 KNO₃

  

Acid-base: In This acid reacts with base to produce water 

HBr + NaOH ---> NaBr + H₂O

 

Chemistry Branches and its meaning

Chemistry have 5 main branches they are 

1)  Organic chemistry- the study of carbon and its compounds

2)  Inorganic chemistry-the study of all the properties and characteristics of other elements.

3)  Analytical chemistry-the analysis and identification of substance

4)  Physical chemistry-the study of laws and principles govering physical and chemical changes

5)  Biochemistry-the study of materials found in living organism