What is formed when two or more elements chemically combine?

When two or more elements chemically combine, they form a compound. A compound consists of atoms of different elements that are bonded together in a fixed ratio, resulting in a substance with distinct physical and chemical properties compared to the individual elements. For example, when hydrogen and oxygen combine chemically, they form water, a compound with different characteristics than either hydrogen or oxygen alone.

In contrast, a solution refers to a homogeneous mixture of two or more substances, where the individual components retain their properties rather than forming a new substance. An element is a pure substance that consists entirely of one type of atom and cannot be broken down into simpler substances through chemical means. A mixture, on the other hand, consists of two or more substances that are physically combined but do not result in a chemical reaction; each component retains its own properties. Therefore, the best answer to the question is that the process described leads to the formation of a compound.