Chemistry, asked by zkarthiksriram9953, 8 months ago

Oxygen cycle is a chemical or physical change

Answers

Answered by PriyankaGhoshRoy
1

Answer:

chemical change

Explanation:

because renew of oxygen is done

Answered by adarshedu88
0

Answer:

he oxygen cycle is the biogeochemical transitions of oxygen atoms between different oxidation states in ions, oxides, and molecules through redox reactions within and between the spheres/reservoirs of the planet Earth.[1] The word oxygen in the literature typically refers to the most common oxygen allotrope, elemental/diatomic oxygen (O2), as it is a common product or reactant of many biogeochemical redox reactions within the cycle.[2] Processes within the oxygen cycle are considered to be biological or geological and are evaluated as either a source (O2 production) or sink

Explanation:Water can also undergo a chemical change. Water

molecules can be broken down into hydrogen and

oxygen molecules by a chemical reaction called

electrolysis. When an electric current is passed through

liquid water (H2O), it changes the water into two

gases—hydrogen and oxygen. The molecules of water

break apart into individual atoms. These atoms then

recombine into hydrogen molecules (H2) and oxygen

molecules (O2). The original material (water) changes

into different substances through a chemical reaction.

Hydrogen and oxygen are used as rocket fuel for the

space shuttle. During liftoff, liquid hydrogen and liquid

oxygen are combined in a reaction that is the opposite of

electrolysis. This reaction produces water and a large

amount of energy that helps push the shuttle into orbit

hence oxygencycle is a chemical change

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