Which list only includes terms that describe oxygen gas, O2?(1 point) Responses atom, compound, molecule atom, compound, molecule atom, element, molecule atom, element, molecule element, molecule, pure substance element, molecule, pure substance compound, molecule, pure substance
atom, element, molecule
The correct answer is:
atom, element, molecule.
The correct list that only includes terms that describe oxygen gas, O2, is "atom, element, molecule." Here's how you can figure it out:
1. Atom: An atom is the smallest fundamental unit of an element. Oxygen gas, O2, is made up of two oxygen atoms.
2. Compound: A compound is formed when two or more elements combine chemically. Since oxygen gas, O2, consists only of oxygen atoms, it is not a compound.
3. Element: An element is a substance made up of only one type of atom. Oxygen gas, O2, is composed of oxygen atoms, making it an element.
4. Molecule: A molecule is a group of two or more atoms held together by chemical bonds. Oxygen gas, O2, consists of two oxygen atoms bonded together, so it is a molecule.
5. Pure substance: A pure substance is a substance that consists of only one type of particle. Oxygen gas, O2, is a pure substance because it is made up of only oxygen molecules.
Considering the definitions and characteristics of these terms, the correct list is "atom, element, molecule," as it accurately describes oxygen gas, O2.