1. Color changes.
The Statue of Liberty, though known for its green color, was originally covered in a layer of copper. After a redox (reduction-oxidation reaction) the color changed due to a chemical change.
2. Gas Production
3. Light Produced
Light sticks work as the result of a chemical reaction between hydrogen peroxide and phenol oxalate ester.
4. Temperature Changes
5. Volume Change
4Fe + 3O2 -> 2 (Fe2O3)
Both sides have 4Fe and 6O.
<span>Involuntary Muscles
</span>⇒ Involuntary Muscles <span>are muscles that contract without any conscious control.
The most important </span><span>Involuntary Muscle in the body is the heart. </span>
