Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> What change would you observe if a silver coin is immersed in hydrochloric acid and kept for many hours?

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> No change would be observed when silver is kept immersed in hydrochloric acid for many hours. This is because silver is a noble metal and does not react with acids.