What happens when you mix together vinegar and baking soda? According to "Science Guy" Jason Lindsey with Hooked on Science you get a chemical reaction that produces carbon dioxide gas. Go to http://www.hookedonscience.org for the experiment guide. Go to http://www.facebook.com/pages/Hooked-on-Science/149765858410439 to become a fan of Hooked on Science on Facebook. Go to http://twitter.com/hookedonscience to become a fan of Hooked on Science on Twitter.