Final answer:
During a chemical reaction, the formation of a solid from a liquid is known as precipitation, which indicates a chemical change where reactants form a new product, or the precipitate.
Step-by-step explanation:
The formation of a solid from a liquid during a chemical reaction is called precipitation. This process involves the combination of reactants to form a new product, which in this case is a solid. It's important to note that in a chemical change, the initial substances, known as reactants, undergo a transformation where chemical bonds are broken and new bonds are formed to create new substances with different chemical properties.
Chemical reactions can be represented using chemical equations that show the reaction's reactants and products, with physical states indicated by symbols such as (s) for solid and (l) for liquid. The product of this type of reaction, the solid, is often referred to as the precipitate.
Formation reactions are a specific type of chemical reactions where one mole of a substance is produced from its constituent elements in their standard states. A classic example demonstrating a chemical reaction is the combination of zinc and sulfur when heated to form zinc sulfide, where zinc sulfide is the solid product.