[importfan878]

I have some questions involving mainly molecular structures and hybrids and such

Cmpound c 4 h 6

   H      H H
H-C=C=C-C-H
              H

I need to know the hybrid orbitals used by each carbon?
All the C needs 4 bonds so i dont see why they arent all sp3.
I thinks what right though i sp2 sp sp2 and sp3 by making each C its own structure then my book has a table with the hybrids for each shape.
Also how do i find a dipole moments direction? For ex sf4
i have to also find the preferred gemotry for that? i Think it is see saw

 Also is an mlolecule having differant atomic arrangments the same as being a resonance structure?

LAstly i don't get how to find the bond angles?
What are the bond angles for sf4(seesaw) and Brf3(t shaped)

thanks

[importfan878]

*Ignore me, I am impatient*

[sjb]

I thinks what right though sp2 sp sp² and sp³ by making each C its own structure then my book has a table with the hybrids for each shape.

Seems OK to me

Also how do i find a dipole moments direction? For ex SF₄

Look into things like electronegativity of the atoms involved in the bond

I have to also find the preferred geometry for that? i Think it is see saw

Why? Could it be square-planar, or tetrahedral?

Also is an molecule having different atomic arrangments the same as being a resonance structure?

No (at least, I don't think so). Resonance to me is more to do with differences in arrangements of electrons. Different arrangements of atoms could be as subtle as keto-enol tautomerism, but this is not resonance.

Lastly i don't get how to find the bond angles?
What are the bond angles for sf4(seesaw) and Brf3(t shaped)

How accurate do you want the figures? Is it sufficient to ignore the differences between lone-pairs and bonded pairs and consider the angles of a T shape (for the latter), or to say that lone pair/bonded pair repel more than bonded pair/bonded pair - perhaps see http://en.wikipedia.org/w/index.php?title=Bromine_trifluoride&oldid=194653373 and http://en.wikipedia.org/w/index.php?title=Bromine_trifluoride&oldid=194653373


S

[AWK]

I have some questions involving mainly molecular structures and hybrids and such

Cmpound c 4 h 6

   H      H H
H-C=C=C-C-H
              H

C4H6
1. two double bonds - two isomers
2. 1 triple bond - two isomers
3. 1 cycle (3 or 4 membered) and 1 double bond - I think 5 isomers are possible