The pH scale is a scale that is used to represent the level of acidity in a solution. A solution with a pH of 7 is neutral, while a solution with a pH below 7 is an acid, and a solution with a pH above 7 is a base. An acid dissociates, or breaks apart, and donates protons, or hydrogen ions, in an aqueous solution, while a base donates hydroxide ions in a solution. Water, for example, is neutral with a pH of 7. When acids are added, they release more hydrogen ions into the solution, and this causes the pH of the solution to drop.
Two days later, EA CEO John Riccitiello stated that Spore would be released sometime before the holidays. On February 12, 2008, Electronic Arts announced in an official press release that the official release date would be September 5, 2008 for Europe and September 7, 2008 for North America.
Itâs a date most movie buffs know by heart: October 21, 2015 â the day Marty McFly and Doc Brown travel to the future in Stephen Spielbergâs 1989 classic âBack to the Future: Part II.â Although you may not have remembered the date, youâve probably heard of Docâs DeLorean, which takes 1.21 gigawatts (GW) of power to travel through time.