(Concept 3.3) A buffer causes acidic solutions to become alkaline, and alkaline solutions to become acidic. A buffer stabilizes the pH of a solution by preventing acids or bases from dissociating. A buffer accepts hydrogen ions when they are in excess and donates hydrogen ions when they have been depleted.
Ivan IV, The Terrible, was crowned Russia's first Tsar at the age of 17. Ivan the Terrible was the fallen angel. He set up a bodyguard that has been described as Russia's first 'secret police' - the Oprichniki - as a religious brotherhood sworn to protecting God's Tsar.
(October 2013) This is a list of all reigning monarchs in the history of Russia. It includes titles Prince of Novgorod, Grand Prince of Kiev, Grand Prince of Vladimir, Grand Prince of Moscow, Tsar of All Rus', and Emperor of All Russia. The list started with a semi-legendary Prince of Novgorod Rurik sometime in the mid 9th century and ended with the Emperor of All Russia Nicholas II who abdicated in 1917, and was executed with his family in 1918. The vast territory known today as Russia covers an area that has