Final answer:
Methane (CH4) is the compound with covalent bonds, which involves sharing of electrons between nonmetal atoms. The properties of covalent compounds include low boiling points and inability to conduct electricity.
Step-by-step explanation:
The compound with covalent bonds among the options provided is methane (CH4). Methane is composed of one carbon atom bonded to four hydrogen atoms. The molecular formula for methane is CH4. Methane is a molecular compound because it consists of nonmetals only, and these nonmetals share pairs of valence electrons through covalent bonding. Methane, like other covalent compounds, has relatively low boiling points, does not conduct electricity, and may not dissolve in water.
Let's complete the table for the given compounds:
- Name of Compound: Methane (CH4) - Covalent
- Name of Compound: Nitrogen oxide (NO) - Covalent
- Name of Compound: Sodium chloride (NaCl) - Ionic
- Name of Compound: Lithium fluoride (LiF) - Ionic
To summarize: a covalent molecule is identified by the presence of nonmetallic elements sharing electrons, and the substance possesses properties like low melting and boiling points, and poor conductivity.