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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.
Is bleaching a stain out of a article clothing a chemical change or a physical change?
Bleaching is done by oxidising chemicals like hypochlorite (bleaching powder) or peroxides. So it is a chemical change(called reaction): the stain is not (only) dissolved, but (rather) broken down to colorless molecules.Additions to this answer are on the discussion area.
What evidence of chemical reaction when bleaching a stain?
For most kinds of bleach, it is Redox (Oxi-Reduction). Traditional bleach is mainly composed of molecules with chlorine, which is what bleaches the stains. When something is bleached it is because the chlorine is reacting with the substance in the stain. Since the chlorine ions are Cl-, they have extra electrons and donate them to the molecules of the stain: this is reduction of the molecules of the stain. The chlorine loses an electron exactly because it donated it to that molecule: this is oxidation of the chlorine ions. Hence Oxidation-Reduction, Oxi-Reduction, Redox.
Is a reagent and counterstain the same?
No, a reagent is a substance or compound used to cause a chemical reaction, while a counterstain is a dye or pigment used to provide contrast in microscopy by staining structures that are not being targeted by the primary stain.
Is there a chemical reaction when detergent cleans grime or grease or dirt?
Mostly the changes are not chemical at all, but physical changes. It does depend on what kind of stain and what kind of detergent. Soap itself only works by physical changes, and not by chemical means at all. However, things like bleach or other bleaching agents (such as whiteners) do cause chemical reactions to remove stains.Perhaps somebody can add some information here about how bleach and whitening agents work?See the Related Questions to the left for more information about how soap works.
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.
Is bleaching a stain out of a article clothing a chemical change or a physical change?
Bleaching is done by oxidising chemicals like hypochlorite (bleaching powder) or peroxides. So it is a chemical change(called reaction): the stain is not (only) dissolved, but (rather) broken down to colorless molecules.Additions to this answer are on the discussion area.
What evidence of chemical reaction when bleaching a stain?
For most kinds of bleach, it is Redox (Oxi-Reduction). Traditional bleach is mainly composed of molecules with chlorine, which is what bleaches the stains. When something is bleached it is because the chlorine is reacting with the substance in the stain. Since the chlorine ions are Cl-, they have extra electrons and donate them to the molecules of the stain: this is reduction of the molecules of the stain. The chlorine loses an electron exactly because it donated it to that molecule: this is oxidation of the chlorine ions. Hence Oxidation-Reduction, Oxi-Reduction, Redox.
Is using bleach to remove a stain a physical or chemical change and why?
When bleaching your shirt it is a chemical change.
How do rags with oil based wood stain spontaneously catch fire?
the stain and the rag create a chemical reaction that causes it to rot and decompose very quiclky. this chemical reaction creates heat, and if it gets hot eanough, fire.
A bathroom cleaning product removes a stain in the sink how is it a chemical change?
When the bathroom cleaning product removes a stain in the sink, it is considered a chemical change because the cleaning product contains chemicals that react with the stain to break it down and remove it. This reaction results in the formation of new substances, changing the composition of the stain and the product.
Can you revive dried out wood stain by adding paint thinner?
No, I have tried this and the end result you get is a very washed out blotchy stain that is very hard to apply. You can try bleaching the stain, and re-apply a stain that has a very close color that can mimic the stain you already have.
A white baseball jersey turned green when washed with socks How do you get it white again without bleaching the green jersey number?
you get the stain out by antieoxden it will take the stain out
Is Silver salts discolor the skin by reacting with skin protein is a chemical property?
It is not a property, it is a chemical reaction.
How do you get period blood out of colored sheets without bleaching them?
Try hydrogen peroxide I use it everytime I get a period stain in my panties.
Does proxide stain carpet?
it will bleach the carpet if that what you are asking it would be about like putting bleach on clothes that dont require bleaching.
How do you get rid of pomegranet stains from clothes?
Pretreat the stain, you can find pretreatments where you buy your detergent.Wash the stain in a washer on a hot cycle.If these steps do no remove the stain, consider bleaching the clothing. In order to bleach the fabric must be color-safe and durable.
