BEA AHBECK CASSON/bahbeck@mercedsunstar.com Daisy Samuelson, 9, with mom Jenni Samuelson, both of Merced, react as vinegar and baking soda are mixed, creating a acid-base reaction, called neutralization, during the Girls Science Camp in Merced Wednesday. (2-6-13) The resulting products of the baking soda and vinegar mix are water, sodium acetate and carbon dioxide gas. The gas make the balloon expand.