Chemistry is around us. Yes it's true.
Remember what you touch, what you feel, and what you see. It's chemistry!
The video above shows one application of chemistry: Magic!
Many magics involve chemistry in it. Because I'm not a magician, I'll tell you the secret of that video above: Alcohol and water.
Alcohol (My partner and I used Ethanol in that video) and water will mix and form a miscible mixture so that we won't see the differences between true water and alcohol-water solution. But don't mix them without any calculation. I tell you why:
Alcohol is flammable while water is inflammable so the important concept you must remember in this problem is: the composition. If you make a bigger percentage of alcohol (ex: 9:1) and you try to burn your desk, I can guarantee that your desk will be burned completely. Otherwise, if you make a smaller percentage of alcohol (ex: 1:9) and you try to burn your self, I can guarantee that you won't ever be burned.
I mix alcohol and water with the composition of 6:4 (you can use 5:5 or 7:3, just try it by yourself) in this experiment and I pour 500 mL of this solution on the floor. I burn it and try to walk on this burned solution. Did I feel anything? No I didn't. I just feel a little hot air in my face but I wasn't burn at all.
Here's the explanation. When the solution is burned. Alcohol is the only compound that is burned here. Water just absorb its heat but don't make it boil because the heat absorbed don't raise the temperature of water itself until 100 oC, maybe about 60 - 75 oC. That's why when you touch the floor after it's "burned" you'll make a conclusion that the floor is just a little warm.
But don't ever try to burn your self without any protection!
When you burn it, the temperature of the system will be about 200 oC, just don't ever try at home, okay?