Question

Can someone look at this and tell me if they are correct?

Answer 1

1. Determine the electronegativity between the atoms of each molecule.
CO2 = 1.0
H2O = 0.8
NH3 = 3.1
CH4 = 5.9
2. Identify the bond as either ionic or covalent.
CO2 = Covalent
H2O = Covalent
NH3 = Ionic
CH4 = Ionic



3. State whether the molecule is polar or non polar.
CO2 = Non Polar

H2O = Polar

NH3 = Polar

CH4 = Non Polar

4. Identify the structure as having hydrogen bonding, dipole-dipole moments or London dispersion forces (LDF).
CO2 = LDF

H2O = hydrogen bond

NH3 = hydrogen bond

CH4 = dipole-dipole

Answer 2

2. nope, they're all covalent, ionic is between a metal and a non-metal, eg. KCl, MgBr2, etc
3. all good
4. good except CH4, which is conflicting with your previous answer because you said "non-polar" and only polar molecules have dipoles

Answer 3

Here you go
- NH3 and CH4 electronegativity values
- NH3 and CH4 are not ionic
- CH4 is not dipole-dipole