Question

Which ones are elements and which ones are compounds?:

A) Nitrogen - Element
B) Oxygen - Element
C) Argon - Element
D) Carbon dioxide - Compound
E) Neon - Element
F) Helium - Element
G) Methane - Compound
H) Krypton - Element
I) Hydrogen - Element
J) Water vapor - Compound

Answer 1

The substances Nitrogen, Oxygen, Argon, Neon, Helium, and Hydrogen are elements, while Carbon dioxide and Water vapor are compounds.

Step-by-step explanation:

In this question, we are given a list of substances: Nitrogen, Oxygen, Argon, Carbon dioxide, Neon, Helium, Methane, Krypton, Hydrogen, and Water vapor.

The elements in the list are Nitrogen, Oxygen, Argon, Neon, Helium, and Hydrogen. These are substances made up of only one type of atom and are classified as elements.

The compounds in the list are Carbon dioxide and Water vapor. These are substances made up of two or more types of atoms and are classified as compounds.