failure or refusal to comply, as with a law, regulation, or term of a contract. Origin of noncompliance. 1680-1690. First recorded in 1680-90; non- + compliance.
If a few drops of water are added to a mixture of solid silver nitrate and powdered magnesium the mixture bursts into flames. The water dissolves the silver nitrate to make a highly concentrated solution. An exothermic displacement reaction occurs which ignites any excess magnesium.
1 Combustion-A combustion reaction occurs when oxygen combines with another compound to form water and carbon dioxide. 2  Combustion reactions produce energy in the form of heat. 3  Photochemical reaction-A photochemical reaction is one involving photons from light.