Covalent Bonding Assignment
For each of the following substances:
1. Name the substance
2. Draw the Electron Dot Diagram show all valence electrons
3. Draw Bonding (2D) Diagram show all single, double, triple & coöordinate covalent bonds
4. Draw the 3-D Bonding Diagram;
" Identify the Shape (LINEAR, BENT, TRIGONAL PLANAR, TETRAHEDRON)
" Predict the Bond Angles (180°, 120°, 105°, 107°, 109.5°)
5. Determine and identify the type of molecule (POLAR, NON-POLAR)
6. Determine and identify the type of intermolecular forces (DISPERSION, DIPOLE-DIPOLE, HYDROGEN)
Ex. H O
2
1. water 2. 3. 4.
´+ ´ -
5. H çÅ‚ O Bond Type: polar bond Molecule Type: net dipole
çÅ‚
çÅ‚
çÅ‚
2.1 3.0 0.9 4"polar molecule
4"
4"
4"
´+
´
´
´
´
´
´
6. Intermolecular Force: H´+, lone pair 4"
4"Hydrogen Bonding
4"
4"
Part A: Molecules
a. C H c. SO e. C H
2 6 3 2 4
b. CO d. H O
2 2
Part B: Ions (ignore #5 and #6; these are polyatomic ions not molecules whose ntermoldecular forces are IONIC)
+
e. NH
a. CN- c. CH COO- 4
3
-
2- 3-
f. HCO
b. C O d. PO 3
2 4 4
Part C: Resonance and Stability (bonus)
Draw all resonance forms then compare the stability and reactivity of
" hypochlorite (ClO-),
-
" chlorite (ClO ),
2
-
" chlorate (ClO ) and
3
-
" perchlorate (ClO ) ions
4
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