1) How many sigma and pi bonds are in each of the following molecules?
H
H СІ
H
CI-C-C1
H. C -C=C-H
H Н
H
H
H
(6)
(c)
a) CH, Cl, - dichloromethane
sigma bonds
No pi
b) CH. CHCI - chloroethylene (aka vinyl chloride)
c) CH. CHCHCCH

What is the number of neutrons in an atom with atomic mass of 35

What can be done to make a solid solute dissolve faster in a liquid solvent?

Match the vocabulary terms to their definitions. 1 . a long, chain-like set of molecules made up of repeating units joined end to end polymer 2 . a hard, brittle, heat- and corrosion-resistant material made by subjecting a nonmetallic mineral mixture to intense heat ceramic 3 . a plastic with low elongations that cannot be recycled thermoset 4 . a carbon fiber embedded in a polymer resin matrix thermoplastic 5 . a plastic with high elongations that can be recycled crystal 6 . a solid form resulting from the arrangement of atoms, ions, or molecules in definite geometric patterns composite