Question

use the drop - down menu to complete the sentence.
when 1 carbon atom combines with 2 oxygen atoms, the resulting substance is called a(n)

Explanation:

A compound is a substance formed when two or more different elements chemically combine in a fixed ratio. Here, carbon (C) and oxygen (O) are different elements combining in a 1:2 ratio (as in \(CO_2\), carbon dioxide). An element is a pure substance made of only one type of atom. An isotope refers to atoms of the same element with different numbers of neutrons. An ion is an atom or molecule with a net electric charge.

Answer:

compound