Beneath the layer of cold, hard rock, jealously bubbled and seethed. The carbon dioxide gas bubbled through the mixture forms calcium carbonate. The resulting gas is bubbled through nitric acid, which will release brown/red vapors. Finally, HCl gas is bubbled through the mixture to produce 4-methylmethcathinone hydrochloride. A sealed tank containing water through which the gas was bubbled. Sometimes, the water was so polluted it bubbled. He bubbled with ideas, and he swept up his listeners with his enthusiasm. The first towers bubbled the nitrogen dioxide through water and non-reactive quartz fragments. Pontiacs sported accentuated bubbled up fins in the rear for the first time in 1953. Nitrogen was bubbled through the tank before launch to keep the fuel mixed. H gas and O gas are bubbled into the electrolyte through the porous carbon electrodes. Selenous acid is bubbled with sulfur dioxide (reduction step) to give elemental selenium. It had earlier bubbled under the Hot 100 at number 20 and then dropped out. It only bubbled under at #103 on the Billboard Hot 100 charts. The song bubbled under the "Billboard" Hot 100, charting at number 108.