Effervescent Powder Dissolving, 2 of 8

Effervescent Powder Dissolving, 2 of 8

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Credit: Editorial Image/SCIENCE PHOTO LIBRARY

Caption: Effervescent powder dissolving in water (2 of 8). The sodium bicarbonate splits apart to form bicarbonate (HCO3-). This reacts with hydrogen (H+) from citric acid, another ingredient in the tablets. This chemical reaction forms water and carbon dioxide gas.

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Keywords: alka seltzer, alka-seltzer, carbon dioxide, carbonation, chemical reaction, chemistry, citric acid, demo, demonstration, dissolve, dissolving, educational, effervescence, effervescent, effervescent powder, experiment, image sequence, lab, laboratory, photo sequence, powder, sequence, sequential, series, sodium bicarbonate

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