Hydrogen

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)