After a lot of debate, scientists are now saying that the primary cause of Coke & Mentos geysers is a physical reaction, not a chemical reaction. Their explanation is this process called nucleation. All the carbon dioxide in the soda – all that fizz – is squeezed into the liquid and looking for a way out.
Why is Coke and Mentos not a chemical reaction?
Dropping Mentos into coke or lemonade allows the dissolved gas within the liquid to come out of the liquid super-fast at these nucleation points on the Mentos surface. Thus the Coke and Mentos reaction is a physical one, not a chemical reaction.
What is the purpose of the Coke and Mentos experiment?
Carbon dioxide is the chemical compound that consists of two oxygen atoms bonded to a carbon atom. Carbon dioxide creates the bubbles in soda. The goal of this project is to explore the eruption of carbon dioxide when the candy Mentos dissolves in Diet Coke.
What happens if you put Mentos in Coke and close the cap?
What is a physical reaction example?
Examples of physical reactions are boiling or freezing water, breaking glass, and dissolving sugar in water. In each case, the physical properties change but the chemical properties remain the same.
What’s in Mentos that makes Coke explode?
Primarily, the sugar, aspartame and potassium benzoate included in the candy shell reduce the work it takes to form bubbles in the soda, causing a rapid creation of carbon dioxide bubbles. These ingredients accelerate the foaming action of the soda very quickly, causing the infamous explosion.
What are the variables in the Coke and Mentos experiment?
This is the experiment’s variable. The variable could be something like the number of mentos dropped into the bottle, the flavor of diet soda, the size of the bottle, or the temperature of the soda.
How do you measure a Mentos and Coke experiment?
How many Mentos are in a volcano?
Start by opening the cold bottle and dipping the thermometer into the soda. Record the temperature. Load seven Mentos into your paper roll or your Geyser Tube and drop them into the soda and immediately record the data.
Can you freeze Mentos?
How do you make a soda explode without Mentos?
To make a soda bottle volcano, first combine 2 parts vinegar, 1 part water, and a squirt of dishwashing liquid. Then, put the mixture in an empty 2-liter soda bottle and add a spoonful of baking soda, which will react with the vinegar to make your volcano erupt.
What are 5 examples of physical change?
Some common examples of physical changes are: melting, freezing, condensing, breaking, crushing, cutting, and bending. Some, but not all physical changes can be reversed. You could refreeze the water into ice, but you cannot put your hair back together if you don’t like your haircut!
What are 5 examples of chemical changes?
- Burning of paper and log of wood.
- Digestion of food.
- Boiling an egg.
- Chemical battery usage.
- Electroplating a metal.
- Baking a cake.
- Milk going sour.
- Various metabolic reactions that take place in the cells.
What are 4 examples of chemical changes?
- Combustion.
- Oxidation (rusting)
- Biological decomposition or fermentation.
- Cooking an egg.
- Photosynthesis.
- Chemical decomposition.
- Reacting acids and bases together.
- Chemical batteries.
Which soda goes the highest with Mentos?
Diet Coke (far right) produces the best effect for the Mentos soda eruption.
How many Mentos come in a roll?
The mints are small oblate spheroids, with a slightly hard exterior and a soft, chewy interior. They are typically sold in rolls which contain 14 mint discs, although the “Sour Mix” variety contains only 11 discs per roll. Smaller versions also exist, typically containing 4 to 6 discs per roll.
Why does Coke explode when you shake it?
The carbonation is due to the presence of dissolved carbon dioxide gas. The gas exerts pressure when not dissolved, which can cause it to burst from its container if too much is released.
Does the flavor of Mentos affect the explosion?
Does the flavor of Mentos affect the explosion? The answer is yes. But it has nothing to do with the mint Mentos’ actual flavor. The mint Mentos mixed with diet coke usually explodes the longer and higher while fruit Mentos has a more delayed and less impressive reaction.
What type of coke reacts best with Mentos?
Believe it or not, research scientists have actually concluded that Diet Coke produces the best stream of flying soda (much to the joy of the Mentos Experiment enthusiasts).
Does the amount of Mentos affect the height of the explosion?
Conclusion: The more mentos you put in a bottle of pop does not necessarily mean a larger explosion. We found that the max amount of mentos with the largest explosion was 4 mentos, it went 350 cm high. With 5 or 6 mentos the explosion went only 330 and 310 cm high.
How do you make Mentos stick together?
How many Mentos are in a 2 liter Coke?
Yes. Five mentos strung on a wire: and dropped into a 2-liter diet cola produced the following geyser: Five loose mentos typically produces a geyser that’s 9-feet tall.
What can I use instead of Mentos?
You can substitute another candy for the Mentos, such as M&Ms or Skittles, but ideally, you want candies that stack into a neat column with minimal space between them, have a chalky consistency, and barely fit through the mouth of a 2-liter bottle.
How do you make Mentos lava?
Put a card under the roll and on top of the bottle top, so you can pull the card and the candies will just drop in at once. Drop all of the Mentos into the bottle at the same time and then move out of the way just as quick as you can. Watch the eruption!
How high does Diet Coke and Mentos go?
When mint or fruit Mentos are dropped into a fresh bottle of Diet Coke, a jet of Coke whooshes out of the bottle’s mouth and can reach a height of 10 metres.