Guys I really cant figure this one out and dont really know how to solve this assingment I got:
Which of the following reactions (starting materials mentioned) produce gaseous reaction products
Sodium hydrogen carbonate + nitric acid.
Calcium carbonate + nitric acid.
Ethanol + oxygen.
Ethanol + acetic acid.
Decomposition of hydrogen peroxide.
Magnesium and hydrochloric acid.
Any help is much appreciated