Question

what type of compound is composed of covalently bonded atoms and has a high melting point?
a. complex molecular compound
b. simple molecular compound
c. complex solid compound
d. simple solid compound

Explanation:

• Complex molecular compounds: Have covalent bonds. In giant covalent structures (a type of complex molecular compound), atoms are covalently bonded in a large network. The strong covalent bonds throughout the structure require a large amount of energy to break, resulting in high melting points.
• Simple molecular compounds: Have weak intermolecular forces between molecules. These forces are easily overcome, leading to low melting points.
• Complex/simple solid compound: The term “solid compound” is too vague. The key factor is the bonding type (covalent) and the structure (molecular - with the distinction between simple and complex molecular structures being crucial for melting point).

Answer:

A. complex molecular compound