Explanations

             

__Friday 27th may 2011__

__Friday 20 May 2011__

Why does vinegar & baking soda fizz?

Baking soda and vinegar are two common materials found in almost every household. Plus the fact that all the materials used in the experiment are non hazardous and safe. In fact, this baking soda and vinegar reaction, has been widely used from public school science classes right up to the university level courses to analyze and demonstrate chemical reactions. The reaction between baking soda and vinegar is actually two reactions, an acid base reaction followed by a decomposition reaction. The acetic acid reacts with sodium bicarbonate to form carbonic acid. Carbonic acid is unstable, and it immediately falls apart into carbon dioxide and water. The bubbles you see from the reaction come from the carbon dioxide escaping the solution that is left. Carbon dioxide is heavier than air, so it flows almost like water when it overflows the container. That is the reason why vinegar and baking soda FIZZ!!!