Chemistry

Question Analysis
This question involves comparing melting points based on bonding type. The main focus is on understanding how ionic versus covalent bonding affects melting point.

Key Concept Explanation
Ionic compounds consist of a lattice of oppositely charged ions held together by strong electrostatic attractions, which require a large amount of energy to overcome. In contrast, covalent compounds are made of individual molecules held together by relatively weak intermolecular forces, which require less energy to separate.

Step-by-step Solution
1. Classify the bond type and particle interaction of each compound:
NaCl: Ionic compound → Strong electrostatic forces → Requires a large amount of thermal energy → High melting point.
CO₂: Covalent molecular compound → Weak intermolecular forces → Requires very little thermal energy → low melting point.
2. Conclusion:
NaCl is more likely to have a high melting point than CO₂.
Explanation:
NaCl is an ionic compound comp...