Solutions are considered acidic, neutral or basic according to their pH value.
Human blood has a pH of between 7.3 to 7.5, which is slightly on the basic side of the scale. If blood pH drops below 7.0 or goes higher than 7.8 the body can no longer function and dies.
There are many other everyday implications to pH values.
pH describes the balance between hydrogen ions and hydroxide ions. Ions are charged atoms, meaning they have either a negative or positive charge as a result of losing or gaining an electron. Hydrogen ions carry a positive charge while hydroxide atoms carry a negative charge. In a neutral solution the two are evenly balanced.Learn more about Acids & Bases