Question

what is cobalt oxide?
a. a chemical element
b. a chemical compound
c. a chemical mixture
please select the best answer from the choices provided
a
b
c

Explanation:

A chemical element is a pure substance made of only one type of atom (e.g., cobalt - Co). A chemical mixture is a combination of two or more substances that are not chemically bonded (e.g., a mixture of salt and sand). A chemical compound is a substance formed when two or more elements are chemically bonded together. Cobalt oxide (e.g., CoO, Co₂O₃) is formed by the chemical bonding of cobalt (Co) and oxygen (O) atoms.

Answer:

B. a chemical compound