An exam or examination is an official test that shows your knowledge or ability in a particular subject. Exam is the word most commonly used. Examination is more formal and is used mainly in written English.
Strong Acids and Bases. Acids and bases that are completely ionized when dissolved in water are called strong acids and strong bases There are only a few strong acids and bases, and everyone should know their names and properties. These acids are often used in industry and everyday life. The concentrations of acids and bases are often expressed in terms of pH, and as an educated person, you should have the skill to convert concentrations into pH and pOH.
Strong acids and strong bases are strong electrolytes [e.g., HCl(aq), H 2 SO 4 (aq), HClO 4 (aq);NaOH(aq)]. There are virtually no molecules of a strong acid or base in solution, only ions.Know the strong acids and bases on the accompanying hand-out Strong and Weak Acidsand Bases. Assume that any other acid or base you encounter in this course is weak, unlesstold to the contrary. [Note: Mg(OH) 2, an insoluble compound, is a strong base because it is anionic compound and therefore a strong electrolyte.].