Why is water sometimes involved in the redox chemistry in an electrolysis reaction?

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

What information does a complete ionic equation give that the balanced equation doesn’t show?

Which characteristics affect ocean water’s temperature? check all that apply. depth location mass salinity waves