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What colour change occurs when h2o2 is added to kmno4?
When hydrogen peroxide (H2O2) is added to potassium permanganate (KMnO4), the purple color of KMnO4 solution fades, turning into a colorless solution. This color change indicates the reduction of KMnO4 to Mn2+ ions.
Why is methylcyclopentanol does not change the colour of potassium permanganate?
Methylcyclopentanol does not change the color of potassium permanganate because it is not easily oxidizable by the permanganate ion. The structure of methylcyclopentanol does not provide the necessary functional groups or carbon-hydrogen bonds that can be readily oxidized by potassium permanganate.
Does potassium change a different colour when mixed with water?
Potassium metal does not change color when mixed with water. However, it reacts vigorously with water, producing hydrogen gas and forming potassium hydroxide. The reaction is exothermic, releasing a significant amount of heat. This reaction is often used to demonstrate the reactivity of alkali metals with water.
Is potassium cloride dissolving in water a chemical change?
Potassium metal does not dissolve in water, it is so reactive that it rips water molecules apart releasing hydrogen gas and combining with the remaining hydroxyl group to form potassium hydroxide (potash lye) which then dissolves in the water. This chemical reaction releases so much heat that it ignites the hydrogen gas that was emitted which produces water vapor/steam and a light purple flame (caused by excited potassium ions).
What causes potassium to catch fire?
Let's look at the equation for the reaction of potassium and water: Potassium + water --> potassium hydroxide + hydrogen The reaction is fast and generates sufficient heat (it is exothermic) for the hydrogen gas produced to react with oxygen in the air. The presence of potassium gives the flame a lilac colour as the hydrogen burns. In comparison, lithium and sodium are less reactive so the reactions are slower and produce less heat so the hydrogen gas produced does not ignite. So, the potassium does not burn, the hydrogen does!
What colour is hydrogen peroxide solution?
Hydrogen Peroxide itself is as colorless as water. Hydrogen peroxide solution is a bit ambiguous, and could vary with what you mean by "solution".
What colour will a solution of hydrogen peroxide fe rrous ammonium sulfate and potassium thiocyanate turn?
This is a very complicated question and the answer would have to be figured out by experiment. Commiserations.
What colour change occurs when h2o2 is added to kmno4?
When hydrogen peroxide (H2O2) is added to potassium permanganate (KMnO4), the purple color of KMnO4 solution fades, turning into a colorless solution. This color change indicates the reduction of KMnO4 to Mn2+ ions.
Why is methylcyclopentanol does not change the colour of potassium permanganate?
Methylcyclopentanol does not change the color of potassium permanganate because it is not easily oxidizable by the permanganate ion. The structure of methylcyclopentanol does not provide the necessary functional groups or carbon-hydrogen bonds that can be readily oxidized by potassium permanganate.
Will hydrogen peroxide open the hair shaft to increase hair dyeing effectiveness?
First, hydrogen peroxide you buy at the store is damaging for your hair. Second ,it is not the same as peroxide developer in hair dyes. Third, opening the hair shaft will make your color fade faster. Plus it could change the color of the dye you are putting on. The question was true. Yes hydrogen peroxide opens the cuticle of the hair to allow the dye to penetrate it. Peroxide is an alkaline substance with a base of about 9. It opens the cuticle so that the colour can be deposited in the hair. If you didn't use peroxide your colour wouldn't last long.
Does hydrogen peroxide remove stains?
no it bleaches the fabric to its original colour, so essentially yes but it removes colour aswell
Is there a hair dye that can be taken internally?
No there isn't. Because you are changing the colour outside you cannot ingest something to change the colour of your hair. A lot of hair dyes contain hydrogen peroxide. It is alkaline and would poison you if you ingested it.
what is the colour change observed when Potassium manganate reacts with ethanol?
Purple colour
How does hydrogen peroxide affect human hair?
Hydrogen peroxide goes through the cuticle (colourless outside layer of the hair) and into the cortex (inside of the hair, has colour) and causes a reaction like an explosion and the colour breaks down and comes out of the hair.
When do you use hydrogen peroxide in hair care?
Peroxide is bleach, you use it to strip hair of it's natural colour . Blonde and black hair go White after using
If you use hydrogen peroxide in hair can you get your regular color back?
As your hair grows your natural colour will grow with the regrowth.
Does potassium change a different colour when mixed with water?
Potassium metal does not change color when mixed with water. However, it reacts vigorously with water, producing hydrogen gas and forming potassium hydroxide. The reaction is exothermic, releasing a significant amount of heat. This reaction is often used to demonstrate the reactivity of alkali metals with water.
