We can't draw diagrams or pictures on the board.
C-C = sp3 tetrahedral
C=C = sp2 trigonal planar
CtriplebondC = sp = linear.
http://tigger.uic.edu/~kbruzik/text/chapt1a.htm
H2C=C=CH2 molecule is linear, what are they hybridization states of the carbon atoms? draw diagrams to show sigma and pi bonds.
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