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.
A base is any substance that can neutralize an acid. The pH of a base is 7.1-14. All antacids have chemical in them called a buffer. When an antacid is mixed with an acid the buffer tries to even out the acidity and that is how stomach acid gets neutralized.he original purpose of this experiment was to determine which antacid would neutralize the most stomach acid. The different antacids I used were Tums, Tagamet, MAALOX, and Pepcid AC. In an antacid it is not the name brand that tells how well it works it is something called an active ingredient.