The term "lawn chemicals" refers to any type of substance or mixture that is used for treating, maintaining, or improving a lawn. This can include fertilizers, pesticides, herbicides, and other products designed to promote healthy grass growth, control weeds or pests, and enhance the overall appearance of the lawn. Lawn chemicals are commonly used by homeowners and professional landscapers to keep their lawns looking lush, green, and free from unwanted plants and insects.