Indicate whether the statements below describe ionic compounds, covalent compounds, or both. Compounds that contain only nonmetal atoms. A. both Compounds composed of positive and negative ions. B. covalent Compounds that are composed of molecules. C. ionic Compounds that are formed when electrons are shared between atoms. Compounds that are formed when electrons are transferred from one atom to another. Compounds that form when atoms bond together to become more stable. Compounds with lower melting points. Compounds with higher melting points. Compounds which conduct electricity when dissolved in water. Compounds which do not conduct electricity when dissolved in water. Compounds that are always solid at room temperature. Compounds that are sometimes solid at room temperature, but others are liquids or gases. Compounds that may or may not be water soluble