Acids and Bases.
1. Identify 3 different acids and give their chemical formulas.
2. Define the term ‘alkali’.
3. To non-chemists, ‘salt’ is sodium chloride. Define what chemists mean by the term ‘salt’.
4. Define the term ‘indicator’
Acids are compounds that in a solution of water produces a pH lower than 7. It is usually being neutralized with a base. Examples of acids are HCl (hydrochloric acids), H2SO4 (sulfuric acid) and HNO3 (nitric acid).
Alkali is a base of ionic salt of an alkali or alkali earth metals. It is sometimes being altered with the definition of a base itself. It has a pH greater than 7 and can be neutralized by an acid. An indicator can be used in order to physically determine if a solution is an acid or a base. For example, blue litmus paper will turn to red if it is dropped in an acidic solution.
Salt is a product of the neutralization reactions of an acid with a base.