Soluble Compounds: Soluble compounds are substances that can dissolve in a solvent, such as water. They usually form clear solutions.
Insoluble Solid: An insoluble solid is a substance that does not dissolve in a particular solvent, resulting in the formation of particles or chunks instead of dissolving evenly.
Double Displacement Reaction: A double displacement reaction is another term for a precipitate reaction, where the positive ions of two compounds switch places to form new compounds and produce an insoluble product (precipitate).