Basically, a Chemical Reaction is when atoms interact, creating new chemicals.
Diet Coke and Mentos
Simply drop a Mentos candy into Diet Coke will cause a huge gush of fizz from the top as seen in the picture above.
Diet Coke and Mentos is probably one of the most popular, renown chemical reactions all around. This "Internet Phenomenon" was started in 1999 by a school teacher Lee Marek.
The reaction is caused by the caffeine, potassium benzoate, aspartame, and CO2 gas contained inside of the Diet Coke and the gelatin and gum Arabic ingredients of the Mentos. These together cause an explosive release of CO2 quickly expanding and causing the "Jet" effect.
This can be a safe and fun Chemical reaction experiment. Simply get Diet Coke (As it works the best) and Mentos (Without the Waxy shells).
Boiling Wax and Liquid
I do not advice trying this. If you do you will more than likely get burned.
In the screenshot I took above from a YouTube video on someone trying this shows the combustion that happens when you add Boiling Wax to a Liquid.
Okay the explanation for this happening. Combustion needs three things to occur: Fuel(The Wax), Heat and Oxygen. They are the basic things fire need. Without them fire cannot occur.
So you have Wax for heat and you have applied heat to that Wax. The only place the Wax gets oxygen is where the Wax and Air touch,so only the surface of the wax will be burning.
Then you add it to the water. The water turns to vapour expanding and pushing out itself and lots of wax in a cloud of small droplets. Now you have lots of heated wax, rapidly interacting with oxygen over a huge surface area. You have all three ingredients for combustion in supply. Then they combust.
Sodium and Water in Chlorine Gas
In the screenshot of a video on YouTube above it shows Sodium in Chlorine Gas (Yellow). When you add water to the Sodium when it is in the Chlorine it burst into flames. Whats left from the reaction is regular table salt.
Hope you liked the few I put on here.
I would have put more but other sites had a lot of the ones I could find here is a link to a site that has a lot;
There are also some on Youtube if you search Chemical Reactions.
