As a model of the new system a prototype allows for several forms of communication. First, it allows the developers to communicate to the users their understanding of the requirements. (Obviously before a prototype can be built there must be some initial requirements discussions between developers and users).
(Arrhenius) a substance that yeilds hydroxide ions in an aqueous solution; metallic oxides in water. Buffers. substances that in solution are capable of neutralizing, within limits both acids and bases, and thereby maintaining the original or constant pH of the solution; substances that prevent changes in pH. Ex. borax, sodium phosphates, and citrates. Crystallization. the process by which a substance is given definite form.
Neutralization Reactions and Salts. Neutralization Reaction A reaction between an acid and a base. If the base is a metal hydroxide then one of the products is water while the other product is a salt.owever, most acids and bases do not completely dissociate to form ions, those that do are called strong acids or strong bases. 1  Strong acid/base Completely ionizes in solution. 2  Strong acid/base Strong electrolyte. 3  Weak acid/base Partially ionizes in solution.