Question

for each statement below, write true or false.

1. ionic compounds are usually soluble in polar substances.
2. in a covalent molecular compound, the attraction between molecules tends to be strong.

Explanation:

• Statement 6: Ionic compounds have charged ions. Polar substances (like water) have partial charges. The "like dissolves like" principle (polar - polar interaction) applies. Ionic compounds can dissociate in polar solvents, so they are usually soluble in polar substances.
• Statement 7: In covalent molecular compounds, the intermolecular forces (such as London dispersion forces, dipole - dipole forces) are relatively weak compared to ionic or covalent bonds within the molecule. For example, in \(H_2O\) molecules, the hydrogen - bonding (a type of dipole - dipole force) is weaker than the \(O - H\) covalent bond.

Answer:

1. True
2. False