Chemical

A substance or compound with a defined molecular composition and properties, often produced through industrial processes or found in nature. Chemicals are fundamental to the study of chemistry and are used extensively in a wide range of fields, including medicine, agriculture, manufacturing, and environmental science. They interact and react with each other according to specific rules, and their properties determine their behavior and applications. This term also can refer to anything related to or involving chemistry or substances derived from chemical reactions. They can be in solid, liquid, or gaseous states.

Chemical meaning with examples

• The laboratory analyzed the chemical composition of the unknown substance, discovering it was primarily composed of silicon dioxide. This finding was crucial for identifying the origins and potential applications of the material. The use of proper safety measures was of critical importance when handling these potentially reactive chemicals. Analysis of the chemical residue showed traces of organic solvents used in the manufacturing process.
• The scientist carefully studied the chemical reactions involved in the new drug’s development, ensuring its efficacy and safety. The understanding of the compound's chemical structure was vital. The drug's chemical properties were tested. Several chemical tests confirmed its effectiveness in the study.
• The use of chemical fertilizers has significantly increased crop yields, though concerns about environmental impact are growing. Farmers must be careful with the handling and use of these chemicals. The environmental impact from run-off from these chemicals is a primary concern. This is a growing area of chemical concern.
• The factory employed various chemical processes to produce plastics, leading to increased production outputs, and helping boost the economy. Workers were provided with extensive training on safe handling of the chemicals. The plant manager investigated the chemical discharge from the facility, to identify the possible pollution causes.
• The corrosion on the old bridge resulted from chemical reactions with rainwater and road salt. chemical engineers studied the chemical breakdown of the metal and determined the cause. They replaced the damaged metal. The chemical breakdown was stopped using a protective coating.