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The following are the answers to the questions/problems from CP Review Homework for Molecular Geometry Polarity IMF and Physical Properties Test.
1a) Ionic 1b) Polar 1c) Non-polar 1d) Polar 1e) Ionic 1f) Polar
2)
- N1H3: 8ve-, 3 single bonds, N is central atom with 1 lone pair (LP), Pyramidal (107.0o), sp3
- Si1H4: , 8ve-, 4 single bonds, Si is central atom with 0 lone pair (LP), Tetrahderal (109.5o), sp3
- F2: 14ve-, 1 single bond, no central atom, Linear (180o), NA
- S1Cl2: 20ve-, 2 single bond, S is central atom with 2 LP , Bent 104.5 bond angle), sp3
3)
- CCl4, ΔEN =0.5, 4 non-polar bonds, Tetrahedral (sym), NA, non-polar molecule, LDF
- BeCl2, Δ EN =1.5, 2 polar bonds, Linear (sym), Yes, non-polar molecule, LDF
- C1O1, Δ EN=0.0, 2 non-polar bonds, Linear (sym), non-polar molecule, LDF
- NF3, Δ EN=1.0, 3 polar bonds, Pyramidal (not sym), polar molecule, dipole-dipole
4) Information on both reactants
5) Vapor (if it is a gas at room temperature sis called a gas)
6) Liquid particles need to obtain enough energy to overcome its IMF and go into the gas phase.
7) Evaporation occurs a) on the surface of the liquid (boiling occurs in the bulk of the liquid) and b) at any temperature up to but not including the boiling point.
8) Will discuss
9) Ionic cpd ) )ΔEN > and = to 1.7
Polar 1.7>ΔEN> and = 0.8
Non-polar ΔEN < 0.8