Steel wool is made from an iron alloy, not a chemical compound with a formula.
When the steel wool burns, it is oxidized and thus this is a chemical change.
Rusting of steel wool is a chemical change because it involves a reaction between iron in the steel wool and oxygen in the air to form iron oxide (rust). This new substance has different properties than the original steel wool.
Steel wool.
The chemical formula of steel wool is Fe, which represents the element iron. Steel wool is composed mainly of iron, with small amounts of other elements depending on the specific type or grade of steel.
Steel wool is also known as a wire wool. It is made from low-carbon steel, it should be as much as possible close to plain iron.
Steel wool.
steel wool is steel made from wool, so it would be neither
the wool does not rust
Steel wool is a mixture.
Steel wool is not soluble in water, neither can it absorb water but can get wet so if you take the steel wool out of the water the wet (due to capillary action and surface tension) steel wool will weigh more than dry steel wool. Then the steel wool will rust (and the mass will increase because oxygen unites with iron to form the rust).
Both steel wool and rocks undergo physical and chemical weathering processes when exposed to the elements. Steel wool can rust when exposed to moisture, similar to how rocks can break down due to freezing and thawing cycles or chemical reactions with water. Both processes result in the breakdown of the material over time.
A steel wool pad