The best term to describe the pair of compounds shown in answer C. The same compound. A compound is made of contrasting elements in definite proportions. Some examples of these elements include iron, copper, hydrogen, and oxygen. A compound is a material formed when two or more elements are joined together.
A compound may be scientifically defined as a substance consisting of atoms or ions or two or more elements that are different and in exact proportions joined by chemical bonds. Compounds have their properties that are unique from the elements they are made. A compound is a type of molecule with more than one element.