CHEMsKEtCH

EXOTHERMIC AND ENDOTHERMIC REACTION.....

                              

http://www.google.com.my/imgres?start=95&hl=ms&tbm=isch&tbnid=3kKR8ou2I47miM:&imgrefurl=http://www.teacherspayteachers.com/Product/Chemical-Reaction-Present

       EXOTHERMIC:   Usually feel hot because it is giving heat to you.

       ENDOTHERMIC: A process or reaction that absorb energy in the form of heat.                           

                                 

Exothermic process	Endothermic process
Freezing water	melting ice cube
solidifying solid salts	melting solid salts
condensing water vapour	evaporating liquid water
splitting of an atom	separating ion pairs

                                                     

http://www.google.com.my/imgres?start=140&hl=ms&sa=X&tbm=isch&prmd=imvns&tbnid=9ie2faf3WG2-wM:&imgrefurl=http://kgortney.pbworks.com/w/page/12336669/Class%2520Notes%2520and%2520Topics&docid=13wz0LbY18qEvM&imgurl=http://kgortney.pbworks.com/f/classifyingChemrxns.jpg&w=800&h=600&ei=53tZUIunGIbMrQf-tYGwBw&zoom=1&iact=hc&vpx=97&vpy=232&dur=2857&hovh=194&hovw=259&tx=168&ty=84&sig=102119571555303648618&page=9&tbnh=130&tbnw=173&ndsp=20&ved=1t:429,r:10,s:140,i:227&biw=1024&bih=653

...Our Chemsketch...
        

                    


                       

                 ...VSEPR THEORY AND ORBITALS...                                            

                                

                                     

                            

                   Okeyhhh...now lets talk about VSEPR Theory and Orbitals. VSEPR stand for Valence Shell Electron Pair Repulsion which is used to predict the shape of individual molecules based upon the extent of electron-pair electrostatic repulsion. There are 4 types of subshell that are s orbital, p orbital, d orbital and f orbital. s orbital is spherical shape. p orbital is a dumbell shape.

 http://faculty.njcu.edu/tpamer/chemprep/goldberg4.htm
                   

                                             

...Our Chemsketch...

                                        
                                                         s, p and pi orbitals


                               

                          ...LIPIDS...

Lipid contain two part that are very opposite to each other. One is hydrophobic which means hate water and another one is hydrophilic which mean love water. In aqueous solution, the fatty acid molecules will become micelles. Micelles is a group of individual lipid that allow the hydrophobic tails to avoid contact with water.

                                    

http://www.google.com.my/imgres?um=1&hl=ms&tbm=isch&tbnid=u0cnTIh3Nu8jkM:&imgrefurl=http://en.wikipedia.org/wiki/File:Lipid_bilayer_and_micelle.svg&do

...Our Chemsketch...

micelle