does anybody know some cool chemical reactions to make?

Question

please tell me

Answer 1

http://video.google.com/videoplay?docid=-2134266654801392897

mentos and diet soda, baking soda and vinegar.

though i'm wondering how the hell you're supposed to drop elemental hydrogen in water. if you make it a solid that would be new and it wouldn't do anything...

Answer 2

I know of many, for example the hydrochloric acid and sugar reaction produces a column of pure carbon in the shape of the container they were mixed in, you can do some flame tests that will change the color of the flame, for example sodium will make a yellow flame, copper a green or blue flame depending on the copper containing compound you use and strontium compounds produce a red flame.
But one of the most dramatic reactions that I know of that basicly anybody can do is putting drain cleaner into a 1 liter pop bottle until it is half to 3/4 full and dropping in a lithium battery that was cut in half and putting on the cap, then run like hell!
the lithium reacts with the drain cleaner producing hydrogen gas which is ignited by the high temperatures produced by the
lithium-drain cleaner reaction and explodes.

Answer 3

Yes indeed their are plenty of 'cool' chemical reactions as you say. These reactions are called ENDOTHERMIC, which means that they absorbs heat during the reaction, which is felt as a cooling effect.

For example, take some ice and add some salt - measure the temperature all the time. You will find that the temperature actually drops below zero, even though the salt causes the ice to begin to melt. Its all to do with the massive increase in entropy when you add the salt!!

Now that is cool!

Answer 4

Yes...A famous one is listed here
Build a real working volcano
Now we're going to get a little messy. In this experiment we build a real working volcano. After mixing just the right amount of ingredients together, we'll add the final item to make our volcano 'blow its top' spewing red lava down the sides.

First we need to create the 'salt dough'. Mix 6 cups flour, 2 cups salt, 4 tablespoons cooking oil, and 2 cups of water in a large bowl. Work the ingredients with your hands until smooth and firm. Add more water to the mixture if needed.
Stand the soda bottle in the baking pan. Mold the salt dough around the bottle making sure you don't cover up the bottle mouth or drop any dough into the bottle. Take your time on this step and build your volcano with as much detail as you like.
Fill the bottle most of the way with warm water mixed with a little of the red food coloring.
Put 6 drops of the liquid detergent into the bottle.
Add 2 tablespoons of baking soda.
Slowly pour vinegar into the bottle and jump back quick!

Answer 5

Depends on the access you have to chemicals

Most simple:

Iodine (from the pharmacy)+bread or pasta ->blue bread or pasta (iodine forms a blue complex with starch) DO NOT eat it.

A small piece of Na in water containing phenolophthalein.
If the piece gets stuck at the walls it will explode. Otherwise the H2 being produced makes the piece move around like a torpedo leaving a purple trace (NaOH is also produced; phenolophthalein is colourless at acidic and neutral pH but purple at alkaline pH)


One of the best is the ammonium dichromate volcano.

you can check various experiments including the ammonium dichromate volcano at http://chemistry.about.com/od/demonstrationsexperiments/

Answer 6

just saw the coolest thing on good morning america. drop 5 mentos in a diet coke two liter bottle.

oh yeah...make sure you're outside and not wearing your favortie clothes. goggles may not be a bad idea.

Answer 7

actually Elena_G its best to use 11 mentos (not 5) with a two liter diet coke.

finely divided calcium hypochlorite (pool chlorine) and polyethylene glycol (brake fluid) are reported to make a nice explosion

Answer 8

Drop a little elemental hydrogen in some water.

Answer 9

AgNO3 + NaCl yields AgCl + NaNO3

Answer 10

drop some HCL on aluminum foil hehe. - be careful though! Its dangerous! - you might want to do this in a well vented area