Lewis Structures
Predicting Shapes
Polarity of Molecules
Intermolecular forces
Balancing Equations
100

Lewis structure for NBr3

100

SCl(both electron and group)

tetrahedral, bent

100

polar or nonpolar?

Cl2

nonpolar

100

Identify the major intermolecular force

HF

Hydrogen Bonding

100

Balance

Al(s) + Cl2(g) → AlCl3(s)

2Al(s) + 3Cl2(g) → 2AlCl3(s)

200

Lewis structure for ClO2-

200
NO3(electron, group)

trigonal planar, trigonal planar

200

Polar or Nonpolar?

PCl3

polar

200

Identify the major intermolecular force Br2

dispersion

200

Balance

Cr2O3(s) + CCl4(l) → CrCl3(s) + COCl2(g)

Cr2O3(s) + 3CCl4(l) →  2CrCl3(s) + 3COCl2(g)

300

Lewis structure for H3O+

300

ClO(electron, group)

tetrahedral, bent

300

Polar or Nonpolar?

HBr

Polar

300

Identify the major intermolecular force PCl3

dipole dipole

300

Na3PO4(aq)+MgCl2(aq) → Mg3(PO4)2(s)+NaCl(aq)

2Na3PO4(aq)+3MgCl2(aq) → Mg3(PO4)2(s)+6NaCl(aq)

400

Lewis Structure for HCCH

400

PO2(electron, group)

linear, linear

400

Polar or Nonpolar?

NF3

Polar

400

which substance would have the higher melting point?

HF or HBr

HF

400

Balance

Pb(NO3)2(aq) + AlBr3(aq) → PbBr2(s) + Al(NO3)3(aq)

3Pb(NO3)2(aq) + 2AlBr3(aq)  → 3PbBr2(s) + 2Al(NO3)3(aq)

500

Lewis structure for H2CO

500

SF3(electron, group)

tetrahedral, trigonal pyriamidal

500

Polar or Nonpolar?

CHF3

Polar

500

Which substance would have the higher melting point

HF or NaF

NaF (ionic bonds)

500

Balance

HNO3(aq) + Fe2(SO4)3(aq) → H2SO4(aq) + Fe(NO3)3(aq)

6HNO3(aq) + Fe2(SO4)3(aq) → 3H2SO4(aq) + 2Fe(NO3)3(aq)

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