The fizzing that is seen when an Alka-Seltzer tablet is dropped in acid is the same sort of fizzing reaction that can be seen when baking soda is mixed with vinegar.
Question to answer: If this experiment is like the first lab, what do you think the third product being formed is that fills up the balloon?
A. A second solid neutralized compound
B. Carbon dioxide as a gas
C. Baking soda again in its reactant form
B. Carbon dioxide as a gas
Based on the information provided, if this experiment is similar to the first lab where baking soda is mixed with vinegar, it is likely that the third product being formed that fills up the balloon is carbon dioxide as a gas. Therefore, the correct answer is B. Carbon dioxide as a gas.
To determine the third product being formed that fills up the balloon, we need to understand the reaction between baking soda and vinegar. When baking soda (sodium bicarbonate, NaHCO3) is mixed with vinegar (acetic acid, CH3COOH), a chemical reaction occurs.
The reaction between baking soda and vinegar is a double displacement reaction, where the baking soda reacts with the acetic acid to form carbon dioxide gas (CO2), water (H2O), and a compound called sodium acetate (CH3COONa).
The fizzing that is observed is caused by the rapid production of carbon dioxide gas as a result of the reaction. This gas fills up the balloon, creating the "fizzing" effect.
Therefore, the correct answer is B. Carbon dioxide as a gas is the third product being formed that fills up the balloon.