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 Water itself is an example of a homogeneous mixture. 2  It often contains dissolved minerals and gases, but these are dissolved throughout the water. 3  Tap water and rain water are both homogeneous, even though they may have different levels of dissolved minerals and gases.