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Is using bleach to remove a stain a physical or chemical change and why?
Wiki User
∙ 7y ago
When bleaching your shirt it is a chemical change.
Wiki User
∙ 12y ago
Wiki User
∙ 7y agoUsing bleach to remove a stain is a chemical change. These are in a class of chemicals known as oxidative agents, meaning that they cause a chemical reaction called oxidation when they come into contact with certain stains, certain germs or other organisms, and sometimes clothing dyes.
Wiki User
∙ 11y agoI'm going to say chemical, because there is no way you can reverse it, basically that's what chemical changes are all about, not being able to reverse the reaction.
Hope I helped :)
Wiki User
∙ 12y agochemical if there is a change in color (which there is) it usually is a chemical change
Wiki User
∙ 12y agoBleaching is chemical (a kind of oxidation), though the outcome (color change) is physical.
Wiki User
∙ 15y agophysical but bleach is a chemical
Wiki User
∙ 12y agochemical.
Wiki User
∙ 11y agophysical
THOMAS NOEL
chemical
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Is filtering air to remove dust and pollen a physical or chemical change?
It’s a physical change 😑
Are filtering air to remove dust and pollen a physical and chemical change?
Chemical change
Is slicing tomatoes a chemical change?
Picking tomatoes from a plant a physical change or chemical change
What chemical in bleach allows it to remove stains?
the chemical is chlorine
When you put a balloon filled with air into a refrigerator and it get smaller is that a physical change or a chemical change?
A physical change because when you remove it from the refrigerator it goes back to it's original size.
Is filtering air to remove dust and pollen a physical or chemical change?
It’s a physical change 😑
Are filtering air to remove dust and pollen a physical and chemical change?
Chemical change
Is slicing tomatoes a chemical change?
Picking tomatoes from a plant a physical change or chemical change
Is a magnet being used to remove iron shaving from dirt is an example of a chemical change?
It is a physical process. Not really a change of any kind.
What chemical in bleach allows it to remove stains?
the chemical is chlorine
What does physics mean in science?
Physical is the opposite of chemical in science. A chemical change involves an actual change in the molecular make up of something while a physical change may remove matter but the chemical make up does not change.
When you put a balloon filled with air into a refrigerator and it get smaller is that a physical change or a chemical change?
A physical change because when you remove it from the refrigerator it goes back to it's original size.
If you add sugar to lemonade is it a chemical change or a physical change?
Physical. The sugar is only held in suspension. The basic reasoning behind this is that you have to stir the sugar in to get it mixed into the lemonade. A chemical change would have been generated just by mixing the chemicals together and given some type of reaction.(Heat, smoke, light, etc) You don't get a "bang" by adding sugar to lemonade. :-)
Is a filament of a light bulb glows when an electric current flows through it is a chemical change?
It is a physical change brought about by the exitation of molecules producing heat and light. A general rule of thumb is that a physical change can be repeated on an article and chemical change cannot. Remove the current from a filament and it is still a filament.
Is stitching of cloth a physical change?
yes. the difference between a physical change and a chemical change is this: physical change changes its looks but it can be changed back. a chemical change changes its state of form and it can't be changed back. ex: an ice cube melting into water. you can always put the water in the freezer and it comes back as ice. but if metal rusts, there is no way you can change it back. so you can get a perfessional or a special cleaning device to remove the dye plus its still a cloth; therefore, it is a physical change.
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 chemical changes able to change?
No Chemical changes are not reversible. If you fry an egg, you will see the white change from a liquid to a solid. How ever, when you remove the egg from pan, the white does not change back to liquid on your plate. The substances present have reacted chemically preventing a physical change from occurring.
