Can someone tell me what a chemical change is, and give and example? Thank you.?

Answer 1

The products of a chemical change have different physical and chemical properties than the reactants.
Example: rusting of iron
Iron + oxygen (the reactants)-----> iron oxide (rust ,the product)

Rust does not look, feel,or act like the original iron .

Answer 2

* Definition: A chemical change occurs whenever compounds are formed or decomposed.
o reactants disappear as chemical change occurs.
o products appear as chemical change occurs.
o catalysts speed up the reaction, but aren't produced or consumed.
* Microscopic view: A chemical change occurs whenever there is a rearrangement of atoms that makes or breaks chemical bonds.