Define a chemical change and list its
characteristics. Give three examples o
chemical changes
Answers
Answer:
A chemical transition is the result of a chemical reaction, whereas a physical change is when the structure of matter changes, but not the chemical identity. Burning, cooking, rusting and rotting are examples of chemical changes...
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Answer:
A chemical change is a change of materials into another, new materials with different properties and one or more than one new substances are formed. It results when a substance combines with another to form a new substance (synthesis or either decomposes to form more substances).
The characteristics of chemical change are:
Color Change.
Production of an odor.
Change of Temperature.
Evolution of a gas (formation of bubbles)
Precipitate (formation of a solid)
Three examples of chemical change are- Digesting food.
Baking a cake.
Rusting of iron