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What is aqua regia? What reaction take place that gold becomes clean and shiny? ​

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Answer:

3Part Concentrate HCL +1 HNO3

Au + Aqua REGIA = HAuCl4

When gold is dissolved in aqua regia, it FORMS chloroauric acid (HAuCl4). The chemical REACTION shows gold reacting with both components of aqua regia: NITRIC acid (HNO3) and hydrochloric acid (HCl).



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