An Alka-Seltzer antacid tablet bubbles vigorously when placed in water but only slowly when placed in an alcoholic beverage of the same temperature containing a 50:50 mix of alcohol and water. Propose a probable explanation involving the relationship between the speed of a reaction and molecular collisions.
A. The tablet reacts with water but not the alcohol.
B. The alcohol absorbs the carbon dioxide bubbles before they escape the liquid phase.
C. In a 50:50 mix, there are fewer water molecules for the antacid molecules to collide with.
D. Alcohol molecules are more massive than water molecules, hence they move slower and their collisions are not as forceful.
Answer: C
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