3 days ago · The form of oxygen we breathe is represented by the formula O₂, or molecular oxygen. This molecule consists of two oxygen atoms chemically bonded together, making up …

Oxygen in Earth's atmosphere is produced by biotic photosynthesis, in which photon energy in sunlight is captured by chlorophyll to split water molecules and then react with carbon dioxide …

Jan 2, 2026 · Oxygen, a colorless, odorless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide …

Sep 1, 2025 · Yes, both O and O2 are called oxygen, but they represent different forms of the element. O refers to a single oxygen atom, while O2 is a molecule composed of two oxygen …

Oxygen (O2) is a gas at room temperature and standard atmospheric pressure, and it is classified as a diatomic molecule. As a gas, oxygen can undergo phase changes, such as liquefaction …

Two oxygen atoms strongly bind together with a covalent double bond to form dioxygen or O2. Oxygen is normally found as a molecule. It is called dioxygen. Ozone is another form of pure …

Jan 9, 2017 · 1 O is a singular oxygen atom. O 2 is a molecule made of two oxygen molecules. Our atmosphere is made of mostly O 2, which our bodies have evolved to breathe. We …

Oxygen (O2) is reduced by both enzymatic and nonenzymatic processes to the superoxide radical (O2-). This radical species of oxygen is postulated to be formed in vivo in animals through …

Oxygen is a chemical element with an atomic number of 8 (it has eight protons in its nucleus). Oxygen forms a molecule (O 2) of two atoms which is a colorless gas at normal temperatures …

Nov 12, 2025 · Why do we say that oxygen gas is O2 and not just O? 2. Is oxygen just O or O2? 3. Why is O2 more stable than O? 4. Does O2 mean oxygen? 5. Why is oxygen both O and …