A material being examined is the same throughout. The material contains carbon and oxygen, chemically combined. What type of material is it?

compound

Explanation:

A compound is a substance that consists of atoms of two or more various elements such that the atoms are chemically joined together.

For example, water is a compound made up of hydrogen and oxygen.

A material being examined is the same throughout such that the material contains carbon and oxygen that are chemically combined. This material is compound.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.