1. pH scale & Neutralization Acidic, Basic or Neutral? The answer may just save your life!

2. pH The pH of a solution is a measure of the concentration of H+ ions in it. The pH of a solution is a measure of the concentration of H+ ions in it. The greater the H+ concentration is, the lower the pH is and the more acidic the solution is The greater the H+ concentration is, the lower the pH is and the more acidic the solution is The pH measures how acidic or basic a solution is. The pH measures how acidic or basic a solution is.

3. pH scale To indicate pH, a scale ranging from 0 to 14 has been devised. To indicate pH, a scale ranging from 0 to 14 has been devised. Solutions with a pH lower than 7 are described as acidic. Solutions with a pH lower than 7 are described as acidic.

4. pH scale: Basic Solutions with a pH greater than 7 are basic Solutions with a pH greater than 7 are basic A solution with a pH of exactly 7 indicates that the concentrations of H+ ions and OH¯ ions are equal. These solutions are considered neutral. A solution with a pH of exactly 7 indicates that the concentrations of H+ ions and OH¯ ions are equal. These solutions are considered neutral.

5. Neutralization Reactions Neutralization is a chemical reaction between an acid and a base that takes place in a water solution. Neutralization is a chemical reaction between an acid and a base that takes place in a water solution. For example, when HCI is neutralized by NaOH, hydronium ions from the acid combine with hydroxide ions from the base to produce neutral water. For example, when HCI is neutralized by NaOH, hydronium ions from the acid combine with hydroxide ions from the base to produce neutral water.

6. Salts! A salt is a compound formed when the negative ions from an acid combine with the positive ions from a base. A salt is a compound formed when the negative ions from an acid combine with the positive ions from a base. In the reaction between HCl and NaOH the salt formed in water solution is sodium chloride. In the reaction between HCl and NaOH the salt formed in water solution is sodium chloride.

7. Salts! The following general equation represents acid-base reactions in water. The following general equation represents acid-base reactions in water. Another neutralization reaction occurs between HCI, an acid, and Ca(OH)2, a base producing water and the salt CaCl2. Another neutralization reaction occurs between HCI, an acid, and Ca(OH)2, a base producing water and the salt CaCl2.

8. Neutral! Another neutralization reaction occurs between HCI, an acid, and Ca(OH)2, a base producing water and the salt CaCl2 Another neutralization reaction occurs between HCI, an acid, and Ca(OH)2, a base producing water and the salt CaCl2