The term "chemical preserving agent" refers to substances that are added to food and other products to prevent them from spoiling or going bad. There are many different synonyms for this term, including preservatives, additives, antimicrobials, and stabilizers. Preservatives work by inhibiting the growth of bacteria, yeast, and other microorganisms that can cause food to spoil. Additives are typically added to food for flavor, color, texture, or nutritional value. Antimicrobials are substances that kill or inhibit the growth of microorganisms, while stabilizers help maintain the freshness and shelf life of food products. Overall, chemical preserving agents are an important tool in the food industry to help keep products safe and fresh for consumers.