A reagent is a chemical used to test for other chemicals. For example, potassium dichromate is used to test for alcohol, and nitric acid can be used to test for gold. Normally there is an obvious change, such as a color change or the formation of a solid substance.
Chromic acid
Chromic acid is a chemical that comes in several forms. It is made by reacting chromates or dichromates with acids or by reacting chromium(VI) oxide with sulfuric acid. As its name shows, it is an acid. It is a strong oxidizing agent. When it is reduced, it turns green. It is used to oxidize many chemicals, such as alcohol. It is very toxic because it contains the chromate ion. It is either a reddish solution or red flakes. It is used to make chromyl chloride.
Chromium(VI) oxide
Chromium(VI) oxide, also known as chromium trioxide, is a chemical compound. Its chemical formula is CrO.It has chromium in its +6 oxidation state. It also has oxide ions. It is a solid used in cleaning glass. Chromium-6 is odorless and tasteless.
It is a dark red crystalline solid. It is a strong oxidizing agent. It can ignite alcohol when it is mixed with it. It is very toxic and irritates skin. It is a stronger oxidizing agent than chromate. It dissolves in water to make chromic acid, which is acidic. It reacts with strong bases to make chromates. It gives off oxygen when heated and turns into chromium(III) oxide.
It is normally made by reacting sodium chromate or potassium chromate with sulfuric acid. It can also be made by drying chromic acid.
It is used to clean glass. It is also used to plate chromate on things. It reacts with metals to make a metal chromate which stops the metal from corroding.
Chromium(VI) oxide is very toxic and irritating. It is a carcinogen and can cause mutations. It can be destroyed by reacting it with a reducing agent like ferrous sulfate. It is a dangerous hazard to the environment.
Chromyl chloride
Chromyl chloride, also known as chromium oxychloride is a chemical compound. It has the formula CrOCl. It is an red liquid. It is made by reacting hydrochloric acid with chromium(VI) oxide or potassium chromate. It is a strong oxidizing agent. When it is mixed with sulfur it oxidizes it. It is the result of a test for chloride. It is toxic because it contains chromium in its +6 oxidation state. It also contains some hydrochloric acid. It reacts with grease and some plastics.
Sodium iodide
Sodium iodide is a chemical compound. It is composed of sodium and iodide ions. The chemical formula is NaI. It is a white crystalline solid. It is a weak reducing agent. When it is exposed to oxygen in the air, it turns yellow-brown. It does this because some of the iodide was oxidized to iodine. It is used to supply iodine to the human body.
Sodium fluoride
Sodium fluoride is a chemical compound. It is made of sodium and fluoride ions. Its chemical formula is NaF. It tastes bitter and is toxic. It is made by reacting hydrofluoric acid with sodium hydroxide. It is used in toothpaste to prevent tooth decay. It is a white crystalline solid.
Todd Heap
Todd Benjamin Heap (born March 16, 1980 in Mesa, Arizona) is an American football player. , he played tight end for the Arizona Cardinals of the National Football League (NFL). Heap was drafted by the Baltimore Ravens out of the Arizona State University by the Baltimore Ravens with the 31st pick in the first round of the 2001 NFL Draft.
Heap wore #80 while playing college football and #86 as a professional. With Baltimore, Heap was known for his quiet personality. Heap's NFL career with the Ravens and Cardinals has been plagued by injuries. He has missed portions of most of his NFL seasons and huge parts of the 2004, 2007, and 2011 NFL seasons. However, he is the Ravens second all-time leader in receptions (the Ravens offense struggled much during Heap's stay there, and Heap was often the primary receiver), and all-time leader in yards and touchdowns. He was released by the Ravens in the 2011 offseason, and signed with the Cardinals, where he struggled to produce. Heap has also taken a number of big hits. He has been greatly popular with the Ravens fan base.
Todd Heap is married to Ashley Heap.
List of governors of Alabama
This is list of the Governors of U.S. state Alabama
Notes
Volkswagen Tiguan
The Volkswagen Tiguan is an SUV produced by Volkswagen since 2007.
Obaman oppivuosi
Obaman oppivuosi - Amerikan idoli putosi maanpinnalle () is a 245-page book written by University of Arizona professor and former Finnish foreign minister Keijo Korhonen. The book is about Barack Obama, the 44th president of United States, and his first year as President. It was published by WSOY in 2010.
Rover 25
The Rover 25 is a car produced by Rover. It replaced the Rover 200 Series in 1999, and were produced until 2005.
SEAT Toledo
The SEAT Toledo is a car produced by SEAT in three generatifrom since 1991. It's currently in its fourth generation.
Alfa Romeo 145
The Alfa Romeo 145 is a car produced by Alfa Romeo. It replaced the Alfa Romeo 33 in 1994, and were replaced by the Alfa Romeo 147 in 2000.
Renault Safrane
The Renault Safrane was a car produced by Renault. It replaced the Renault 25 in 1992, facelifted in 1996 and was produced until 2000. It was replaced by the Renault Vel Satis in 2001.
Renault 21
The Renault 21 is a car produced by Renault. It replaced the Renault 18 in 1986, facelifted in 1989 with a hatchback model added and were replaced by the Renault Laguna in 1994. The Nevada station wagon continues until 1995.
Rover 45
The Rover 45 is a car produced by Rover. It replaced the Rover 400 Series in 1999, and was produced until 2005.
Derrick Mason
Derrick James Mason (born January 17, 1974 in Detroit, Michigan is a former American football wide receiver and returner. He played college football for Michigan State University. He never won a Super Bowl. Mason was known for his work ethnic (motivation), but sometimes took it too far when he did not receive the ball, like he sometimes did with Ravens quarterback Joe Flacco.
In the National Football League, Mason was drafted by the Tennessee Titans in 1997. He played as a returner and wideout and helped Tennessee to a Super Bowl XXXIV appearance. Before the 2005 season, Mason signed with the Baltimore Ravens. With Baltimore, Mason became a very successful veteran receiver. He is their all-time leading wideout.
In 2011 however, the Ravens released Mason. Mason spent portions of 2011 with the New York Jets and Houston Texans, where there was more controversy (arguments, etc.) He announced that he was going to retire from professional football after he signed a 1-day contract with Baltimore Ravens on June 11, 2012.
John Madden
John Earl Madden (born April 10, 1936) is a former American football player, broadcaster, and commentator who was the coach of the Oakland Raiders of the National Football League (NFL) for 10 years, and after retiring from coaching became a well-known color commentator for NFL telecasts. He never had a losing season. As head coach his teams won seven division titles and one Super Bowl. He has used his commentary on many football games, including the long-running "Madden NFL" video football games since 1988. He is also known for his award-winning play, "The Bootleg." Madden has been inducted into the Pro Football Hall of Fame. Madden worked as a color analyst for all four major networks: CBS (1979–1993), Fox (1994–2001), ABC (2002–2005), and NBC (2006–2009).
Madden has also written several books and has served as a commercial pitchman for various products and retailers. He retired from broadcasting on April 16, 2009 to spend more time with his family.
Medicine Hat
Medicine Hat is a town in the Canadian province of Alberta. In 2015, the city had 63018 people.
Massachusetts General Hospital
Massachusetts General Hospital is a very large hospital in the state of Massachusetts.
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