Is Writing On Paper A Chemical Change or Physical Change? Answer: Physical change
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Writing on paper is a physical change rather than a chemical change. This is because no new substances are formed when you write on paper. Instead, the physical properties of the paper are simply altered.
When you write on paper, the ink from the pen or pencil is transferred to the paper. This ink can be wiped away, erased, or overwritten, all of which are physical changes. The paper itself does not undergo any chemical reactions or changes in its composition.
A chemical change, on the other hand, involves the transformation of one or more substances into new substances with different chemical properties. This can involve changes in color, odor, heat, or light production, or the release or absorption of gases. Writing on paper does not result in any of these chemical changes.
In summary, writing on paper is a physical change because it alters the physical properties of the paper without changing its chemical composition.
Difference Between a Chemical and a Physical Change?
A physical change can be observed through changes in a substance’s physical properties, such as its shape, size, color, texture, or phase (e.g., solid, liquid, or gas). Physical changes do not result in the formation of new substances, and the original substance can typically be recovered through simple physical processes such as filtration, evaporation, or melting.
On the other hand, a chemical change involves the formation of new substances with different chemical properties, which cannot be easily reversed. Chemical changes are usually accompanied by changes in the substance’s chemical properties, such as the release of heat, light, or gases, a change in odor or taste, or the formation of a precipitate (a solid that forms from a liquid mixture).
Examples of physical changes include melting ice, boiling water, crushing a can, or dissolving sugar in water.
Examples of chemical changes include burning wood, rusting iron, cooking food, or digesting food in the body.
Example of Chemical Change
Is Paper Burning A Chemical Change Or Physical?
Paper burning is a chemical change. When paper burns, it undergoes a chemical reaction known as combustion, where the cellulose fibers that make up the paper react with oxygen in the air to produce carbon dioxide, water vapor, and other gases.
During the combustion of paper, the original substance is transformed into new substances with different chemical properties. The cellulose fibers break down and form new compounds such as carbon dioxide and water vapor. The paper’s physical properties, such as its color, texture, and shape, also change during the combustion process.
Therefore, paper burning is an example of a chemical change because it involves a transformation of the original substance into new substances with different chemical properties.