Oxygen is a gas.
Oxygen gas is made up of one substance = oxygen. So oxygen gas is not a compound
Oxygen is an element. At room temperature, molecular oxygen (O2) is a gas.
By chemical analysis; also a candle burn in oxygen (or in a gas containing oxygen) but not in nitrogen, argon, carbon dioxide.
Oxygen production would decrease in a deforested area. Less trees = less oxygen being produced.
Nowhere, animals do not produce oxygen.
Oxygen
Oxygen is a gas.
Replanting trees is effective for increasing oxygen production.
Oxygen gas is made up of one substance = oxygen. So oxygen gas is not a compound
Yes, oxygen is a colourless gas.
No, but oxygen is most common as a gas.
Oxygen IS a gas at normal temperatures and pressures
The tissues get oxygen from oxygenated blood supply for energy production.
Hydrogen gas is H2. Oxygen gas is O2.
oxygen gas is heavier than hydrogen gas
At room temperature, oxygen is a gas.