What is Chemical Change?


A chemical change refers to what happens to a chemical when an outside force or influence affects it. Some chemicals may breakdown when left in sunlight. Others may change states when heated or chilled.
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physical changes are anything that can be undone, eg crumpling paper chopping wood building with legos freezing water boiling water dissolving salt water chemical reactions can't
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Phase changes are discrete versus temperature because they represent a crossover point where the thermodynamic free energy of one state suddenly becomes lower than the previously
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A chemical change is a change that takes place on the molecular level of the matter. In this change, a completely new substance, different from the initial matter ...
The are many different chemical changes. For example, rust forming on metal is a chemical change. As is photosynthesis, which is the process of (chemically) changing ...
Chemical changes occur when there is a chemical reaction and it causes a new substance is formed. It is difficult or impossible to reverse a chemical change. ...
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