Question

how do you know how many elements are in a compound

Answer 1

by seeing its chemical formula like in NaHCO3

there are sodium, hydrogen, carbon and oxygen.

Answer 2

Answer:

Explanation:Molecules of most elements are made up of only one of atom of that element. Oxygen, along with nitrogen, hydrogen, and chlorine are made up of two atoms. ... Letters, numbers, and symbols are used to represent elements and the number of elements in each compound.