Questions: Classify each substance based on the predominant intermolecular force present in that substance. Hydrogen bonding Dipole-dipole forces London dispersion forces Answer Bank motor oil ice in glass water in glass mineral spirits Roundup herbicide antifreeze

Solution Steps

First, we need to identify the predominant intermolecular forces for each substance. The three types of intermolecular forces are:

1. Hydrogen bonding: Occurs in molecules where hydrogen is directly bonded to a highly electronegative atom (N, O, or F).
2. Dipole-dipole forces: Occur in polar molecules where there is a permanent dipole moment.
3. London dispersion forces: Present in all molecules, but they are the predominant force in nonpolar molecules.

Now, we classify each substance based on the predominant intermolecular force:

1. Motor oil: Nonpolar hydrocarbons, so the predominant force is London dispersion forces.
2. Ice in glass: Solid form of water, which has hydrogen bonding.
3. Water in glass: Liquid form of water, which also has hydrogen bonding.
4. Mineral spirits: Nonpolar hydrocarbons, so the predominant force is London dispersion forces.
5. Roundup herbicide: Contains polar molecules, so the predominant force is dipole-dipole forces.
6. Antifreeze: Typically contains ethylene glycol, which has hydrogen bonding due to the presence of -OH groups.

Final Answer