Reference checking is a vital part of a successful hiring strategy1 and is primarily used to: â¢ Verify information provided by the candidate. â¢ Better predict the candidateâs on-the-job success. â¢ Gain additional knowledge (e.g., candidateâs abilities) Reference checking aims to verify the information a candidate provided (e.g., resume) and can. provide a different perspective. Both instances present a better picture to the hiring manager of. how the candidate would perform on the job.
The substance (or substances) initially involved in a chemical reaction are called reactants or reagents. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants.he general concept of a chemical reaction has been extended to reactions between entities smaller than atoms, including nuclear reactions, radioactive decays, and reactions between elementary particles as described by quantum field theory.
Let students know that in this chapter they will explore what happens during a chemical change. In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change. As a demonstration, light a candle and explain what is happening using the terms reactants, products, and chemical reaction. Explain that in most chemical reactions, two or more substances, called reactants, interact to create different substances called products. Tell students that burning a candle is an example of a chemical reaction. Materials for the Demonstration