What is DMS? Sonography can be used to examine many parts of the body, such as the abdomen, breasts, female reproductive system, prostate, heart, and blood vessels. Sonography is increasingly being used in the detection and treatment of heart disease, heart attack, and vascular disease that can lead to stroke.
For other uses, see Mass action (disambiguation) . In chemistry, the law of mass action is a mathematical model that explains and predicts behaviours of solutions in dynamic equilibrium. Simply put, it states that the rate of a chemical reaction is proportional to the product of the masses of the reactants.
Although energy can change forms, all energy in a closed system and must remain constant. 1  The law of Conservation of Mass: Mass can not be created or destroyed. 2  The law of Conservation of Energy: Energy can not be created or destroyed. 3  The law of Conservation of Mass-Energy. Neither energy nor mass can be created or destroyed, instead mass is conserved as energy or energy is conserved as mass. A combination of the law of conservation of energy and conservation of mass (based on E = mc2 (energy mass equivalence)).