Solids are generally divided into types: ionic, metallic, amorphous, molecular, and covalent network. Categorization is based largely on the physical properties of the substances involved.
Examine the properties of the four solids, A, B, C, and D, as described in the table below.
|Substance||Melting Point||Water Soluble?||Electrical Conductor?|
Which of the following is the MOST likely category for these four solids?