Which best describes the definition of Lewis acids and bases?
a general definition based on electron structure
a general definition based on hydrogen ion concentration
a specific definition based on a compound’s ability to accept protons
a specific definition based on a compound’s ability to donate protons

An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o