Astudent sees that a solution of co2 has an acidic ph. he thinks that co2 could not create hydrogen ions when mixed with water since it contains no hydrogen atoms. explain what is incorrect about the student's reasoning.

The student is worng, because CO₂ is acidic oxide. When an acidic oxide reacts with water, acid is formed. In the student's case, the following reaction happens:

H₂O + CO₂ ⇒ H₂CO₃

The H₂CO₃ is carbonic acid and it is the scoure of the H⁺ atoms. The sample is not contaminated.

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a polymer is a chainlike molecule made up of small molecular units. these small molecular units are called monomers. monomers of polymer can be joined together either naturally or synthetically.