Question

which property do nonpolar covalent and polar covalent compounds demonstrate? good electrical conductor malleability very high melting points insulator

Explanation:

• Nonpolar covalent and polar covalent compounds do not have free - moving charged particles (ions or electrons) in the pure form.
• Electrical conductivity requires the presence of free - moving charged particles. Malleability is a property of metals. Very high melting points are characteristic of ionic and some network covalent compounds.
• Since they lack free - moving charged particles, they cannot conduct electricity well and act as insulators.

Answer:

insulator