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Answer 1

The term ion  is an atom or molecule with a net electric charge  due to the loss or gain of one or more electrons. hydrogen is  a colorless, odorless, highly flammable gas, the chemical element of atomic number 1   carbonic acid Carbonic acid is a chemical compound with the chemical formula H₂CO₃. It is also a name sometimes given to solutions of carbon dioxide in water, because such solutions contain small amounts of H₂CO  these are all i know