Anyone Really good in Chemistry???

Question

zpupster · Answer

ask

zpupster · Answer

please lala ask your question

anonymous · Answer

oh I got that one I have one more hold on

anonymous · Answer

@zpupster ?

zpupster · Answer

Ethene (ethylene) is a flat (planar) molecule so a 2-dimensional model would be fine. Propane needs a 3-D model since each carbon has a tetrahedral arrangement.

anonymous · Answer

I still don't really understand this

anonymous · Answer

its asking what is the difference

zpupster · Answer

hang on be patient with me

anonymous · Answer

of course! ;)

zpupster · Answer

this ethene it is 2d (flat) is has to do with planar geometry-- the shapes of molecules and how they are arranged  in space and also there electron pairs. give me a sec and i will show you propane

zpupster · Answer

propane is 3d it is not flat the ends have a tetrahedral shape.  i will try to find you article that 
can explain about these shapes of molecules.

zpupster · Answer

here you go short and simple explanation of molecular geometry http://intro.chem.okstate.edu/1314F00/Lecture/Chapter10/VSEPR.html

anonymous · Answer

thanks! you think you can help me on my new question