Yeast does not react with hydrogen peroxide but it is a catalyst.
Hydrogen peroxide (H202) decomposes into H2O and O2. This is always happening but at a very low rate so you don't notice it. If you add yeast to hydrogen peroxide it will speed up the decomposition of H2O2. However the yeast does not react with the H2O2 and nothing is chemically altered in the yeast. That is because yeast is a catalyst.
Author's note, updated February 2008: The question I get asked most by readers is, "Can I mix the hydrogen peroxide and vinegar into one sprayer?" The short answer is: EEK - No! The longer answer is: never mix hydrogen peroxide and vinegar together in one container. The resulting chemical, peracetic acid, can harm you when mixed together this way if you accidentally create a strong concentration in this fashion. Peracetic acid also has entirely different characteristics and properties than either hydrogen peroxide or vinegar. Additionally, we don't know if peracetic acid kills the same group of pathogenic food-borne bacteria when used this way as a spray - it very well may not.
I have long used a 50/50 mix of vinegar/hydrogen peroxide, stored in plastic bottles, as a bore cleaner for my handguns that use plain cast lead bullets. The mixture dissolves lead - a lead bullet placed in a glass ashtray filled with the fluid will be reduced to powder! I plug the breech end of the barrel, stand it vertically, and fill with the mix. When the fizzing and foaming stops, I pour it out and run a patch through a completely clean barrel.
nothing. yeast need sugar or they won't do anything. Additionally hydrogen peroxide is toxic, which is why the body goes to such extent to break it down. Even if there was sugar the yeast would die.
....You may find it bubbles ever so slightly as the hydrogen peroxide breaks down into water and hydrogen, but that would happen anyway.
During the reaction, the yeast's enzyme "catalase" turns hydrogen peroxide into water and oxygen, both harmless to it. So when you pour hydrogen peroxide on the yeast, you are seeing the effect of
this enzyme and the chemical reaction it mediates. When yeast metabolizes sugar, they produce carbon dioxide as a by product of metabolism. So the production of carbon dioxide will not be immediate, but as they begin to use the sugar, bubbles will appear. These bubbles will be carbon dioxide. They also produce ethanol (alcohol) in the balanced chemical reaction.
So: water, oxygen, carbon dioxide, and ethanol.
You get something called elephants toothpaste...... go to sciencebob.com
It makes NaCl (Sodium Chloride) + H2O (Water). Otherwise known as Salt Water. It also foams during the reaction.
bubbles
To look good
endothermic because it absorbs energy, and not releasing it
Calcium Chloride and water Yeast and Hydrogen Peroxide (Produces alot of gas) Hydrogen Peroxide and Sodium Iodide (Produces alot of gas) Disturbed Sodium Acetate (Shockwave)
When the three chemicals are combined it creates a foam like substance which expands. This is a common experiment and can be easily created in your own house or in a science laboratory. It is often referred to as Elephants Toothpaste.
There is also a method that uses lemon juice, yeast, and hydrogen peroxide. You can read the full directions at the Crystal Clear Science web site in the related links below.
because we have skills
yeast infection
Hydrogen peroxide, liquid soap and active yeast. The chemisty is to decompose hydrogen peroxide with the help of active yeast that is mixed in some warm water. When hydrogen peroxide is decompose, oxygen released is trapped in form of bubbles by the liquid soap. Hydrogen peroxides is available in any pharmacy store and it is just a fun project.
Yes
Hydrogen Peroxide decomposes in oxygen gas and water.
To look good
I think its oxygen
Yeast froths when put in peroxide because the acidic nature of peroxide reacts chemically with the products of yeast, causing hydrogen to be given off and froth to fizz rapidly.
Hydrogen peroxide is a very powerful oxidizing agent. The cell walls of the yeast are made up of organic compounds that can be oxidized by the H2O2. It destroys the cell walls and kills the yeast in the process.
A yeast infection is an overgrowth of yeast, often in the vagina and vulva. The genitals naturally contain yeast, usually they're kept under control by hydrogen peroxide produced by certain bacteria within the vagina, but occasionally the yeast are allowed to overgrow.
Some women use a hydrogen peroxide solution to treat yeast infections. The hydrogen peroxide solution is an effective and natural home remedy. It is not recommended for use during menstruation or pregnancy.
Put hydrogen peroxide with yeast (baking) and there you go.