Photochemical Reaction
Revision as of 08:48, 23 October 2018 by NRJC (talk | contribs) (Created page with "==Key Stage 3== ===Meaning=== A '''photochemical reaction''' is a chemical reaction that is caused by light. ===About Photochemical Reactions=== : S...")
Key Stage 3
Meaning
A photochemical reaction is a chemical reaction that is caused by light.
About Photochemical Reactions
- Some chemicals decompose when exposed to light.
- Photography originally used a chemical called Silver Nitrate which breaks down when exposed to light to make Silver. This creates a dark patch on the photographic paper.
- A mixture of Hydrogen and Fluorine is sensitive to Ultraviolet light which will cause a chemical reaction.
- The retina in the eyes has a chemical which changes when exposed to light. This allows the cells respond to light.