Question

Which species represents a chemical compound?
(1) N2 (3) Na
(2) NH4+ (4) NaHCO3

Answer 1

NaHCO3 since it is made up of multiple elements and is not an ion.

Answer 2

Answer:

4.) NaHCO3

Explanation:

In a compound, two or more elements are chemically combined. NaHCO3 is a compound containing the elements sodium (Na), hydrogen (H), carbon (C), and oxygen (O). N2 and Na are elements. NH4+ is the polyatomic ion ammonium.Zoom