Cobalt(II) oxide

Cobalt(II) oxide or cobalt monoxide is an inorganic compound that appears as olive-green to red crystals, or as a greyish or black powder. It is used extensively in the ceramics industry as an additive to create blue colored glazes and enamels as well as in the chemical industry for producing cobalt(II) salts.

Structure and properties

CoO crystals adopt the periclase (rock salt) structure with a lattice constant of 4.2615 Å.

It is antiferromagnetic below 16 °C.

Preparation

Cobalt(II,III) oxide decomposes to cobalt(II) oxide at 950 °C:

Though commercially available, cobalt(II) oxide may be prepared in the laboratory by electrolyzing a solution of cobalt(II) chloride.

CoCl₂ + H₂O → CoO + H₂ + Cl₂

It may also be prepared by precipitating the hydroxide, followed by thermal dehydration:

Reactions

As can be expected, cobalt(II) oxide reacts with mineral acids to form the corresponding cobalt salts:

Applications

Cobalt(II) oxide has for centuries used as a coloring agent on kiln fired pottery. The additive provides a deep shade of blue named cobalt blue. The band gap (CoO) is around 2.4 eV. It also is used in cobalt blue glass.

List of Pokémon anime characters

This is a list of Pokémon anime characters.

Main characters

Rivals

Professors

Antagonists

Team Rocket

Team Rocket (ロケット団, Roketto-dan, Rocket Gang) is an organization bent on world domination. Headed by Giovanni, their plan to steal and exploit Pokémon for profit and power is a central plot device used throughout the series. According to the anime, the organization only has bases in the Kanto and Johto regions; however, that does not stop the show's antagonist trio of Jessie, James, and Meowth from following Ash Ketchum to other areas around the Pokémon world. Often, members of Team Rocket are broken up into pairs in order to perform specific heists—like Jessie and James. In the English translations, the pairs are often given names which nod to iconic figures of the American Old West: Jesse James, Butch Cassidy, and Annie Oakley, as well as Atilla the Hun.

Team Magma

Team Magma (マグマ団, Maguma-dan, Magma Gang) is one of the two villainous organizations in the Hoenn Region. They are a group of experts in the fields of geology and plate tectonics. Like Team Rocket, some rebels are Pokémon thieves, but Team Magma specializes in the field of Fire and Ground type Pokémon. In Pokémon Ruby, the team acts as the main crime team antagonists.

Jana Kramer

Jana Rae Kramer (born December 2, 1983) is an American actress and country music singer. She is best known for her role as Alex Dupre on the television series One Tree Hill. Kramer began a country music career in 2012 with the single "Why Ya Wanna" from her self-titled debut album for Elektra Records.

Early life

Kramer was born in Rochester Hills, Michigan, United States, to Nora and Martin Kramer. She is of German Chilean, Croatian and French ancestry. Jana has one brother Steve who is a police officer. Jana attended Rochester Adams High School. She speaks some German.

Career

2002–11: acting career and record deal

In 2002, Kramer made her acting debut in the low-budget independent horror film Dead/Undead. The following year Kramer guest appeared on All My Children, which marked Kramer's television debut. Kramer has since continued to appear in a number of television shows such as CSI: Crime Scene Investigation, Grey's Anatomy, Private Practice and CSI: NY. She has also had small supporting roles in films such as Click, Prom Night and Spring Breakdown.

Love (Cirque du Soleil)

Love is a 2006 theatrical production by Cirque du Soleil which combines the re-produced and re-imagined music of the Beatles with an interpretive, circus-based artistic and athletic stage performance. The show plays at a specially built theatre at the Mirage in Las Vegas.

A joint venture between Cirque and the Beatles' Apple Corps Ltd, it is the first theatrical production that Apple Corps Ltd. has partnered in. Love is written and directed by Dominic Champagne. Music directors are Sir George Martin, producer of nearly all of the Beatles' records, and his son, record producer Giles Martin. A soundtrack album of the show was released in November 2006.

History

The project arose from discussions in 2000 between George Harrison and his friend Guy Laliberté, one of Cirque's founders. Three years of negotiations between surviving members of the Beatles, Sir Paul McCartney and Ringo Starr, The Beatles widows Olivia Harrison (representing George Harrison) and Yoko Ono (representing John Lennon), the Beatles' holding company Apple Corps Ltd. and the MGM Mirage culminated in an agreement.

Tennis scoring system

A tennis tournament is organized into matches between players (for singles tournaments) or teams of two players (for doubles tournaments). The matches of a tournament are grouped into rounds. In round 1, all players (or teams) are paired and play against each other in matches. The losers are said to leave, or be out. They no longer compete in the tournament (this is single elimination). The winners are again paired to play in the matches of the next round. The tournament continues until the quarterfinal round (having eight players or teams playing in pairs), then the semifinal round (having four players or teams playing in pairs), and finally the final round (having only two players or teams) are played. The winner of the final round is declared the winner of the entire tournament.

A tennis match is composed of points, games, and sets. A match is won when a player or a doubles team wins the majority of prescribed sets. Traditionally, matches are either a best of three sets or best of five sets format. The best of five set format is typically only played in the Men's singles or doubles matches at Majors and Davis Cup matches.