Question

which option is an example of a chemical reaction that occurs at a very fast rate?
○ an explosion
○ rotting wood
○ iron rusting
○ photosynthesis

Explanation:

An explosion is a rapid chemical reaction. Rotting wood, iron rusting, and photosynthesis are chemical reactions but occur slowly. Rotting wood is decomposition, iron rusting is oxidation over time, and photosynthesis is a series of complex reactions in plants that are not rapid.

Answer:

an explosion