What kind of reaction is 8 FE S8 ---FeS?

The reaction ( 8 \text{Fe} + \text{S}_8 \rightarrow 8 \text{FeS} ) is a combination or synthesis reaction, where elemental iron (Fe) and sulfur (( \text{S}_8 ), a molecular form of sulfur) combine to form iron(II) sulfide (FeS). In this process, multiple atoms of iron react with a molecule of sulfur to create a compound, indicating a transformation from individual elements to a new chemical species.