Inflate a balloon with CO2This simple experiment illustrates the chemical reaction between lemon juice and baking soda, which produces carbon dioxide (CO2). Fill a regular soda bottle about a quarter of total tap water. Add a teaspoon of baking soda. Removes a comb until the baking soda is dissolved. Add the juice of a whole lemon. Very rapidly, covered with a balloon opening around the top of the bottle. The ball will start to inflate. This is because the baking soda is a base and lemon juice is an acid. Create CO2 when combined. es facil hacewr la supuesta maquta 0.o