What is the cycle of chemistry?

Chemical cycling describes systems of repeated circulation of chemicals between other compounds, states and materials, and back to their original state, that occurs in space, and on many objects in space including the Earth. A chemical cycle involving a biosphere is known as a biogeochemical cycle.

Explanation:

Active chemical cycling is known to occur in stars, many planets and natural satellites.

2b2t

explanation:

2b2t

fe 55.85 g/mol and h2o 18.02 g/mol.