While the most valuable football cards may not command the same prices as baseball or basketball cards, prices have soared during the last decade with collectors of vintage football cards coming on strong.
**The pH scale is a measure of the hydrogen ion concentration. It spans from 0 to 14 with the middle point (pH 7) being neutral (neither acidic or basic).Any pH number greater than 7 is considered a base and any pH number less than 7 is considered an acid. 0 is the strongest acid and 14 is the strongest base.*The pH scale is a measure of the hydrogen ion concentration. It spans from 0 to 14 with the middle point (pH 7) being neutral (neither acidic or basic).
Quick Answer. The scientific term pH is an abbreviation that stands for potential of hydrogen, which is a measure of the acidity or alkalinity of a solution.The term, which first came into use in 1909, is Germanic in origin and is derived from the word potenz, meaning power, plus H, which is the symbol for hydrogen on the periodic table. Continue Reading.