A jeweler has old gold jewelry that she wants to make into new jewelry. Pure gold is valuable and also is an element. Therefore, the jeweler needs to use the process described below to separate the pure gold from the impurities that are present in the old jewelry.Step 1: A colorless strong acid is poured over the old gold jewelry. A process occurs that allows the gold to become dissolved in the acid. The impurities do not dissolve.Step 2: After a while, the acid turns orange due to the pure gold particles dissolved in it. The acid/gold solution is poured into a separate container, leaving behind the impurities.Step 3: The orange acid is then heated to evaporate the acid, and a chunky gold powder remains in the container.Step 4: This gold powder is melted into liquid gold and poured into a mold to make a solid gold bar.

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