Naming
What is the name of CaCl2?
calcium chloride
Write the formula for calcium phosphide.
Ca3P2
Draw the Lewis structure for PCl3 and determine its shape.
Trigonal pyramid
What IMFs exist between molecules of Cl2? Would attraction between these molecules be relatively strong or weak?
LDF only
Weak
Which has the largest radius: F or Cl? EXPLAIN.
Cl because more shielding.
What is the name of C4H8?
Butene
Write the formula for propanol.
C3H7OH (answers may vary)
Is HCN polar or nonpolar? Draw a Lewis structure to support your answer.
Polar.
What IMFs exist between molecules of NH3? Would attraction between these molecules be relatively strong or weak?
Hydrogen bonding, dipole dipole, LDF
Strong
Which would have the shortest bond? Support your answer with lewis structures.
Cl2, S2, P2
P2 (triple bond)
What is the name of PCl5?
phosphorus pentachloride
Write the formula for manganese (III) phosphate.
MnPO4
Is O2 polar or nonpolar? Draw a Lewis structure to support your answer.
nonpolar
What state of matter would you expect CaCl2 to exist in? Why?
Solid; ionic compounds are HIGHLY attracted to each other.
List three differences between an ionic and covalent bond.
Naming rules
Transfer vs share
IMFs
etc.
What is the name of Cu2SO4?
copper (I) sulfate
Write the formula for lithium nitride.
Li3N
Determine the shape of BH3. Is it polar or nonpolar?
Nonpolar
Which would you expect to have a higher boiling point: HCl or H2O? EXPLAIN.
H2O has hydrogen bonding.
HCl has dipole dipole.
H2O is more attracted; harder to separate; higher boiling point.
Light, odor, gas, solid, color change, temperature change
What is the name of Zn(ClO2)2?
zinc chlorite
Write the formula for ammonium carbonate.
(NH4)2CO3
Which two shapes are always polar AND what makes them always polar?
Bent & pyramidal
Lone pairs on the central atom
Which would you expect to have a higher vapor pressure: HBr or NH3?
NH3 has hydrogen bonding; HBr has dipole dipole.
NH3 is more attracted; harder to separate; less likely to lose molecules to the gas phase.
HBr has higher vapor pressure.
Balance the equation and give the reaction type:
__C5H10 + __O2 --> __CO2 + __H2O
Combustion
2, 15, 10, 10