Students want to gather evidence for the claim that the number of atoms present before a chemical reaction is equal to the number of atoms present after the chemical reaction. They decide to react vinegar and baking soda in a sealed plastic bag. Which of the following will provide the evidence the students need?
A. The mass of the plastic bag, baking soda, and vinegar before the reaction was equal to the mass after the reaction.
B. Bubbles were produced during the reaction, which meant that a gas was being produced.
C. The plastic bag did not change in any way, indicating that it was not involved in the reaction.
D. The mass of the baking soda was exactly equal to the mass of the vinegar used to create the chemical reaction. THIS IS DUE IN AN HOUR HELPPP!!!
