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The ultra-violet (UV) rays in sunlight are very energetic and can affect many chemicals. Exposure to UV for long time (such as being left out in the sun) can cause the chemicals in dyes and pigments to break down and lose their colour leaving them bleached.

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Is bleaching a stain endothermic or exothermic reaction?

Bleaching a stain is typically an exothermic reaction, meaning it releases heat to the surroundings. The chemical reactions involved in bleaching stains usually generate heat as they break down the stain molecules, resulting in a warming effect.


Why bleaching action of SO2 is not permanent?

The bleaching action of sulfur dioxide (SO2) is not permanent because it is a reversible process. SO2 can react with oxygen in the air or other chemicals to form compounds that are not colorless, leading to the loss of its bleaching effect. Additionally, SO2 can evaporate over time, reducing its concentration and effectiveness as a bleaching agent.


Why is urine or discharge bleaching your underwear?

Urine or discharge can sometimes bleach underwear due to the presence of ammonia, which can have a bleaching effect on fabrics. This is more common with concentrated urine or vaginal discharge that contains higher levels of ammonia. It is a natural chemical reaction that can occur with certain fabrics and substances.


Does a blacklight luminate colored water?

Yes, a blacklight can make certain colors appear to glow or fluoresce when illuminated, including colored water. This effect is due to the fluorescent properties of certain compounds or dyes in the water reacting to the ultraviolet light emitted by the blacklight.


Why do apples turn white when dipped in bleach?

When apples are dipped in bleach, the bleach reacts with enzymes in the apple that cause browning, breaking them down and preventing discoloration. This reaction results in the apple turning white as a temporary effect of the bleaching process.

Related Questions

What causes skin to bleach towels and clothes?

Skin bleaching on towels and clothes occurs when products containing bleaching agents are applied to the skin. These agents can interact with the fabric fibers, causing discoloration. Other factors such as sweat or oils from the skin may also contribute to the bleaching effect on textiles.


Does bleaching your hair take the drugs out?

No, bleaching hair has no effect on hair-tests for drug abuse.


How does Clorox effect color clothes?

Clorox, or bleach, can cause color clothes to fade or change in color. It is important to follow the care instructions on the clothing label and to use bleach sparingly to avoid damage to colored clothes.


What color does green clothes turn when bleached?

Green clothes can turn yellow or white when bleached, depending on the fabric dye and the strength of the bleach solution used. It is important to test a small, inconspicuous area of the clothing before bleaching to determine the effect.


What are the reasons for the permanent bleaching effect of chlorine?

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.


Will bleaching the hair on my arms effect a tattoo on my arm?

Shouldnt


What is the hypothesis of the affect bleach clothes?

The hypothesis regarding the effect of bleach on clothes could be: "Bleach will cause color fading or lightening of fabric when applied to colored clothing due to its oxidizing properties breaking down pigments in the fabric."


How you call the combination of water and bleaching agent that emit light?

colloid effect.


How does sunlight lighten hair color?

Sunlight has a 'bleaching' effect on light coloured hair.


Is bleaching a stain endothermic or exothermic reaction?

Bleaching a stain is typically an exothermic reaction, meaning it releases heat to the surroundings. The chemical reactions involved in bleaching stains usually generate heat as they break down the stain molecules, resulting in a warming effect.


How do you get rid of eye circles?

Apparently slicing raw potato and placing on the dark circles has a "bleaching" effect!


Does baking soda solution help in neutralising the effect of bleaching powder on the face?

What ? Are you crazy ? Bleach on the face ?