its because of the fact that So2 bleaches by reduction i.e. removal of oxygen.. the oxygen presnt in the air oxidises it back hence the colour reappears...
Chlorine is the element responsible for bleaching in bleaching powder, also known as calcium hypochlorite. When bleaching powder is dissolved in water, it releases chlorine gas, which has bleaching properties that help remove stains and disinfect surfaces.
Chlorine gas dissolves in water to form a bleaching agent known as hypochlorous acid which is present in bleaching solutions.
To use activated bleaching earth for edible oil, mix the required amount of bleaching earth with the oil at a specific temperature for a certain period of time. Allow the bleaching earth to absorb impurities, color compounds, and unwanted odors from the oil. After the bleaching process, separate the activated bleaching earth from the oil through filtration or centrifugation.
Chlorine gas and sulfur dioxide gas are examples of gases that have bleaching properties. Chlorine gas is commonly used in the bleaching of paper and textiles, while sulfur dioxide gas is often used as a bleaching agent in the food industry.
SO2 to SO3 conversion efficiency can be calculated by dividing the amount of SO3 produced in the reaction by the theoretical maximum amount of SO3 that could be produced from the initial amount of SO2 present. This calculation gives a percentage that represents the efficiency of the conversion process.
Bleaching is not permanent, as the effects can fade over time.
When orange filter paper is dipped into SO2 gas, it turns colorless or white due to the bleaching action of sulfur dioxide on the dye in the filter paper. This color change is a characteristic test for the presence of SO2 gas.
Chlorine is a strong oxidizing agent that disrupts the pigment molecules in hair, leading to a permanent bleaching effect. It breaks down the melanin in the hair strands, resulting in a lighter color. Additionally, chlorine can strip the natural oils from the hair, contributing to its bleaching effect.
Bleaching it is what i do! But that can damage your hair a bit. it's about the only thing that can get permanent color out without the color stripper.
S + o2 = so2
SO2 is Sulfur Dioxide
SO2 is the chemical formula of sulfur dioxide; but SO2 is an inorganic compound.
To determine the number of moles of SO2 in 0.45 grams of sulfur dioxide, you need to use the molar mass of SO2. The molar mass of SO2 is about 64.06 g/mol. Divide the given mass by the molar mass to find the number of moles. In this case, 0.45 grams divided by 64.06 g/mol gives you approximately 0.007 moles of SO2.
how to remove so2 from chimney
CaCl2.Ca(OH)2.H2O Bleaching powder is Calcium hypochlorite & the basic chloride
Probably waxing or bleaching but that only disguises the hair (such as on the top lip). Hole this helped a little even if it didn't fully answer the question Actually waxing or bleaching are temporary hair removal techniques, so the above poster is wrong. There is no actual permanent hair removal method, only permanent hair reduction methods. The most popular of these are , electrolysis, laser hair removal and IPL hair removal, all of which can prevent hair regrowth after multiple treatments. The referenced site has further information on temporary and permanent hair removal techniques.
SO2 is a gas.It is sulphar dioxide.