Basic Chemistry

Existence of molecules in nature  molecules exist in the two ways....  1: Homoatomic molecules :  molecules are made up of similar atoms.  2: Heteroatomic molecules :  Molecules are made of the dissimilar atom.  Note: while you writing a chemical reaction you always remember that the atoms always write in its molecular form except inert atom.. OK.......  Now whose atoms exist in molecular formula especially homoatomic molecules which gives a correct a chemical reaction.. Homoatomic molecules :   types* Monoatomic molecules :  He,  Ne,  Ar, kr, Xn, Rn. Diatomic molecules:   H-H -------> H2 ( Hydrogen molecule) N-N --------> N2( Nitrogen molecule) O-O ---------> O2( oxygen molecule) F-F  ---------> F2 ( fluorine molecule)  Cl- Cl --------> Cl2 Chlorine molecule) Br-Br ---------> Br2  I - I  -----------> I2 Triatomic molecules:  Three similar atom  Only one example .... O3 (O...

 Chemical classification of matter.. Let's start I ask you a question ???  Both Your books and  pen are solid but they are same in nature?????   you say..  no ! both both are different in nature because my books is made up of Woods material and and my pen is made up of plastic still they are both but they made up of different kinds of material.... and this is done by knowing their different kinds of material is deal  by internal view or internal nature of material which they  differ to one substance to another substance is chemical classification of matter. Chemical classification               Chemically matter is classified into two categories:  1:  homeogenous matter called pure substances.  2: heterogeneous matter called impure substances. 1: Homogenous matter Homogenous matter means any substance made up of a single kinds of material which are evenly distributed throughout the substa...

Classification of matter :       Dear.... On the basis of external and internal behaviour of matter it divide into two category. 1: physical classification 2: chemical classification 1: physical classification:  Physical classification of matter its mean what is the external view of matter. You are see in your home the table, your books, your pens, computer glass and plates is it tough and this tough called solid.  You also see that in your home when you bath drinking water drinking milk that's matter tendency to flow so it is called liquid. And and you also notice when your mother making a special food you can easily detect that today is special foods making by your mummy. And another case when u  stick a mosquito coil their smell is sprayed  everywhere.this smell is gas Definition of solid liquid and gases..      Solid:     1:  solid has definite mass. 2:  solid has  definite volume.(why?)  3:...