Two pure substances A and B react to form a new pure substance C. From this, we may conclude that
A)A and B are both elements
B)C is a compound, A and B may or may not be elements
C)C is an element, A and B are compounds
D)A, B, and C are all compounds

Question

Quizplus · Accepted Answer

When two pure substances react to form a new pure substance, the product is a compound, and the reactants can be either elements or compounds. This is because a compound is defined as a substance formed when two or more chemical elements are chemically bonded together. The initial substances (A and B) could be elements combining to form a compound, or they could be compounds reacting to form a new compound.

Two Pure Substances a and B React to Form a New