Question

nacl and kbr are ionic compounds. h₂o and c₆h₁₂o₆ are covalent compounds. how does vanessa describe the difference between the melting points and elemental compositions of ionic and covalent compounds? a ionic compounds have higher melting points than covalent compounds. ionic compounds are composed of all nonmetals while covalent compounds are composed of a metal and a nonmetal. b ionic compounds have higher melting points than covalent compounds. ionic compounds are composed of a metal and a nonmetal while covalent compounds are composed of all nonmetals. c ionic compounds have lower melting points than covalent compounds. ionic compounds are composed of a metal and a nonmetal while covalent compounds are composed of all nonmetals. d ionic compounds have melting points that are similar to covalent compounds. ionic compounds are composed of a metal and a nonmetal while covalent compounds are composed of all nonmetals.

Explanation:

Ionic compounds are formed by the transfer of electrons from a metal to a non - metal, resulting in strong electrostatic forces between ions. Covalent compounds are formed by the sharing of electrons between non - metals and have weaker intermolecular forces. Due to the strong ionic bonds, ionic compounds generally have higher melting points than covalent compounds.

Answer:

B. Ionic compounds have higher melting points than covalent compounds. Ionic compounds are composed of a metal and a nonmetal while covalent compounds are composed of all nonmetals.