Chemistry, 05.11.2020 20:10 chloerodgers56

During an investigation, students dropped a tarnished penny into a solution of acetic acid and sodium chloride. Tiny
bubbles formed around the penny, and the penny was less
tarnished after two minutes of soaking in the acetic acid and
sodium chloride solution. The student inferred that a
chemical reaction occurred.
What evidence supports the student's inference?

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During an investigation, students dropped a tarnished penny into a solution of acetic acid and sodi...