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.
The law of conservation of mass is observed in a balanced chemical equation, which is a chemical equation that shows all mass is conserved throughout the reaction. Chemical equations that do not obey the law of conservation of mass are known as unbalanced equations, or skeleton equations.