Occurrence |
---|
| 1 pt |
| | Who is Henry Cavendish? |
| | Scientist that is normally credited with discovering hydrogen |
| 2 pt |
| | What is 1766? |
| | Year hydrogen was discovered (+/- 5 years) |
| 3 pt |
| | What is water? |
| | Hydrogen is commonly produced from this reactant |
| 4 pt |
| | What is methane, carbon, or carbon monoxide? |
| | Reducing agents commonly used to produce hydrogen |
| 5 pt |
| | Who is Paracelsus? |
| | Scientist believed to have first produced hydrogen |
|
Properties |
---|
| 1 pt |
| | What are hydrogen (H-1), deuterium (H-2), and tritium (H-3)? |
| | The three isotopes of hydrogen |
| 2 pt |
| | What are the alkali metals and the halogens? |
| | Two groups of the periodic table hydrogen could belong to |
| 3 pt |
| | What is 12.4 years? |
| | Half-life of the tritium hydrogen isotope |
| 4 pt |
| | What is 75%? |
| | Approximate percentage of the universe composed of hydrogen (+/- 5%) |
| 5 pt |
| | What is colorless? |
| | Flame color of hydrogen when ignited in the presence of oxygen |
|
Uses |
---|
| 1 pt |
| | What are nitrogen fixation (Haber ammonia process) or hydrogenation of alkenes (fats and oils)? |
| | One of the two major uses of hydrogen in the chemical industry |
| 2 pt |
| | What is nickel hydride? |
| | Battery technology utilizing hydrogen ions |
| 3 pt |
| | What is Ballast for airships? (Hindenberg disaster , 5/16/37) |
| | Common use of hydrogen before 1937 "incident" |
| 4 pt |
| | What is production of hydrogen bombs? |
| | Major use of the tritium isotope |
| 5 pt |
| | What is lithium aluminum hydride or sodium borohydride? |
| | Powerful organic chemistry reducing agent that utilizes hydrogen |
|
Fun Facts |
---|
| 1 pt |
| | Who is James Dewar? |
| | Scientist who first liquified hydrogen |
| 2 pt |
| | What is the observation of cold fusion (later disproved)? |
| | Exciting claim involving deuterated acetone in 2002 |
| 3 pt |
| | What is the formation of "metallic hydrogen"? (at pressures exceeding 2.8 Mbar) |
| | Claim made by Russian physicists involving hydrogen in 1973 |
| 4 pt |
| | What is DHMO? (dihydrogen monoxide, water) |
| | "Invisible killer" involving hydrogen nearly banned by several California communities in the early 1990s |
| 5 pt |
| | Where is Louisville, KY? (2006) |
| | City where the public were discouraged from playing in public fountains by posting signs that the water "contains high levels of hydrogen" |
|
Daily Double |
---|
| History of Hydrogen |
| | What is -70 deg C? |
| | Boiling point of water if it did not exhibit hydrogen bonding (+/- 5 deg) |
|