In this experiment, “Nitric acid acts upon copper to yield nitric oxide in an exothermic reaction.” Continue reading for the video.

The expanding gas displaces water from another flask; actually bubbles in this set up. When the gas cools, the water is drawn back into the flask, dissolving the nitric oxide and forming a blue solution with the copper ions still there

In this experiment, “Nitric acid acts upon copper to yield nitric oxide in an exothermic reaction.” Continue reading for the video.

The expanding gas displaces water from another flask; actually bubbles in this set up. When the gas cools, the water is drawn back into the flask, dissolving the nitric oxide and forming a blue solution with the copper ions still there