Paper can be chemically modified by adding substances like fillers or coatings to alter its properties, such as making it more water-resistant or improving its printing quality. It can also be mechanically processed by techniques like embossing or laminating to create textures or enhance durability for specific uses, such as packaging or decorative papers. These changes help paper meet various requirements for different applications.
Some indicators of a chemical reaction are: - change of color - change of odor - release of a gas - change of the temperature - change of the viscosity - formation of a precipitate - change of general appearance - possible explosion - possible chemiluminiscence
The rusting of an iron pole is a chemical change. An example of a chemical change would be crumbling a piece of paper. When you are crumbling this piece of paper, the contents of the paper have not change and you are able to uncrumble the paper there is no difference except the paper has wrinkles. :) However in an example of chemical change like a metal rusting, you cannot un-rust it, it was chemically changed. Another example of a chemical change would be burning a piece of paper to ashes.
All around us are chemical products: paper, cement, drugs, paints, solvents, etc.
Physical change. The paper is still a piece of paper; nothing happened to the chemical composition of it.
When a paper bag rips, the chemical composition of the paper does not change. The ripping of the paper bag is a physical change, where the arrangement of the paper fibers is altered, but the chemical bonds between molecules remain the same.
Some indicators of a chemical reaction are: - change of color - change of odor - release of a gas - change of the temperature - change of the viscosity - formation of a precipitate - change of general appearance - possible explosion - possible chemiluminiscence
A phsical change is something that can be changed but cant be changed back. for example: you can crumple a piece of paper but it is still paper. A chemical change means it has been changed perminetly so for example: If you burn the paper its ashes not paper. it was ashes but youy cant change it back into paper. Hope this helps :)
Physical, because the paper hasn't changed any chemical properties (It is still paper), even after you cut a heart out of it.
Shredding paper is a physical change because you can put all the pieces of paper back together again, i.e. it is still paper. The chemical nature has not changed, only the APPEARANCE has changed.
The process of making paper from wood involves both physical and chemical changes. Physically, the wood fibers are mechanically separated and broken down into pulp. Chemically, during the pulping and bleaching processes, chemical reactions occur to alter the composition of the wood fibers and remove impurities, resulting in the transformation of raw wood material into paper.
No, ripping up a piece of paper is a physical change, not a chemical change. Chemical changes involve the formation of new substances with different chemical properties, while ripping paper only changes its physical appearance without altering its chemical composition.
It is physical because the appearance hasn't changed at all and is the same paper still. For example, if you burned the paper that would be a chemical change because the paper turned into ash and is releasing gas which is a resulting chemical change that has just happened. Hope this helped :) -V
Shredding paper is a physical change because it does not alter the chemical composition of the paper. The paper is simply being physically broken down into smaller pieces, but it is still made up of the same materials it was before shredding.
No, paper undergoing a chemical change is irreversible. Once paper is burnt, it is permanently changed into ash and can't be turned back into its original form.
Magnetizing a paper clip is considered a physical change. This is because the process of magnetization does not alter the chemical composition of the paper clip. The magnetic properties are induced by aligning the magnetic domains within the material, which is a reversible process. Chemical changes, on the other hand, involve the formation of new substances with different chemical properties.
The rusting of an iron pole is a chemical change. An example of a chemical change would be crumbling a piece of paper. When you are crumbling this piece of paper, the contents of the paper have not change and you are able to uncrumble the paper there is no difference except the paper has wrinkles. :) However in an example of chemical change like a metal rusting, you cannot un-rust it, it was chemically changed. Another example of a chemical change would be burning a piece of paper to ashes.
Because ur physically changing the paper. Say u have a 12in paper, and u tear it in half (2 6in papers). You have physically changed the papers appearance. Its not a chemical change because there are no chemicals involved in tearing a paper in half.