Question

1. choose the best answer. which form of matter has the weakest intermolecular force? gas liquid solid 22. choose the best answer. which of these compounds will have a lower melting point? a covalent compound with hydrogen bonding a covalent compound without hydrogen bonding 23. choose the best answer using a periodic table. which type of bond is likely to form between carbon (c) and iodine (i) atoms? metallic bond covalent bond ionic bond polar covalent bond

Explanation:

1. Gases have particles that are far apart with minimal attraction between them, resulting in the weakest intermolecular forces compared to liquids and solids.
2. Hydrogen bonding is a strong intermolecular force; compounds without it have weaker intermolecular attractions, requiring less energy to melt, so they have lower melting points.
3. Carbon (C) and iodine (I) are both nonmetals. Nonmetals form covalent bonds by sharing electrons, and their electronegativity difference is small enough to form a polar covalent bond (since iodine is less electronegative than carbon, creating a slight dipole).

Answer:

1. gas
2. a covalent compound without hydrogen bonding
3. polar covalent bond