Some baking soda and vinegar were weighed separately and the weights added together. the two substances are mixed and a chemical reaction occurred, producing carbon dioxide, sodium acetate, and water. when the three new substances are weighed and the weights totaled, which of the following will be true? a. there is no way to know, because changes in mass are random. b. the new weights will be more because there is more mass. c. the original weight will be more because there was more mass. d. the two weights will be equal, because the mass is the same.