Lewis Structures
Predicting Shapes
Polarity of Molecules
Intermolecular forces
Balancing Equations
100
Lewis structure for NBr3
100
SCl2 (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
ClO2 (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)