Is napalm a chemical?

No. Napalm is the name given to any of a number of flammable liquids used in warfare, often jellied gasoline (as by Wikipedia's definition). A chemical weapon is one that does not cause physical...

Napalm is a petroleum fire (GI's in Vietnam called it a gasoline fire); so it is both, if one wishes to call petroleum a chemical.

Napalm is the name given to any of a number of flammable liquidLiquid Liquid is one of the principal states of matter. A liquid is a fluid that has the particles loose and can freely form a distinct...

never

A chemical reaction describes the process wherein reactants combine to form products.