Question: What market primarily uses ammonia production?
Answer: the fertilizer market

Question: Name a process that uses fossil fuels along with hydrogen.
Answer: hydrocracking

Question: For hydrogen what is the enthalpy of combustion?
Answer: 286 kJ/mol

Question: What are two forms of hydrogen gas?
Answer: dihydrogen or molecular hydrogen

Question: Which element has a enthalpy of combustion at −286 kJ/mol?
Answer: Hydrogen

Question: What kind of light do hydrogen-oxygen flames make?
Answer: ultraviolet light

Question: What caused  the Hindenburg to explode?
Answer: hydrogen combustion

Question: What are two other dangerous acids?
Answer: hydrogen chloride and hydrogen fluoride

Question: What temperature does hydrogen react with these elements?
Answer: room temperature

Question: What model id used to calculate energy levels of hydrogen?
Answer: Bohr model

Question: What attracts planets and celestial items?
Answer: gravity

Question: What does the electromagnetic force attract to one another?
Answer: electrons and protons

Question: What kind of movement does the electron not have in ground state?
Answer: angular

Question: How many different spin isomers exist?
Answer: 2

Question: What state are the protons in when in the orthohydrogen form?
Answer: triplet state

Question: When hydrogen gas is in standard temperature and pressure, what form is it considered in>
Answer: normal

Question: What percent of para form does hydrogen gas contain?
Answer: 25%

Question: What percent of ortho form does hydrogen gas contain?
Answer: 75%

Question: What are some catalysts used in hydrogen cooling
Answer: ferric oxide, activated carbon, platinized asbestos, rare earth metals, uranium compounds, chromic oxide, or some nickel compounds

Question: What ind of charge does hydrogen take when mixed with electronegative particles?
Answer: positive charge

Question: What type of charge does hydrogen take when combined with a metal?
Answer: negative

Question: When hydrogen forms with a metal, what is the compound called?
Answer: hydrides

Question: Is H2 reactive in standard conditions?
Answer: not

Question: What is the form of hydrogen and carbon called?
Answer: hydrocarbons

Question: What is the form of hydrogen and heteroatoms called?
Answer: organic compounds

Question: What is the study of organic compounds properties known as?
Answer: organic chemistry

Question: What is the study of living organisms known as?
Answer: biochemistry

Question: Organic compounds are only required to conatin what?
Answer: carbon

Question:  Who suggested that hydride anions existed?character does the H atom have in a hydride?
Answer: Gilbert N. Lewis

Question: What group of hydrides is BEH considered polymeric?
Answer: group II

Question: How many binary borane hydrides are known?
Answer: over 100

Question: How many binary aluminum hydrides are there?
Answer: 1

Question: What chemistry do hydrides serve as bridging ligands?
Answer: inorganic chemistry

Question: What do hydrides that are bridging ligands link up?
Answer: link two metal centers

Question: What group is briging ligands most common in?
Answer: group 13

Question: When hydrogen oxidates, what is it removing?
Answer: electrons

Question: When hydrogen oxidates, what does it end up giving?
Answer: H+

Question: What theory suggests that acids are proton donors?
Answer: Bronsted-Lowry

Question: What is another term for a bare proton?
Answer: H+

Question: Where can oxonium ions be found?
Answer: in acidic solution with other solvents

Question: What other term is a solvated protons referred as?
Answer: hydronium ion

Question: What kind of molecular hydrogen is the H+3 knows as?
Answer: protonated

Question: What kind of cation is the H+3 knowns as?
Answer: trihydrogen cation

Question: How many natural isotopes does hydrogen have>
Answer: 3H

Question: What are the names of these isotopes?
Answer: denoted 1H, 2H and 3H

Question: Which isotopes have unstable nuclei?
Answer: 4H to 7H

Question: Which element is the only that has different names for its isotopes?
Answer: Hydrogen

Question: What are the only two names still used for radioactive isotopes?
Answer: deuterium and tritium

Question: What are the symbols used for deuterium and tritium?
Answer: D and T

Question: What does the symbol P represent?
Answer: phosphorus

Question: What are the preferred symbols for deuterium and tritium?
Answer: 2H and 3H

Question: What year was the discovery of hydrogen gas?
Answer: 1671

Question: Who discovered Hydrogen gas?
Answer: Robert Boyle

Question: Who recognized hydrogen gas as a discreet substance?
Answer: Henry Cavendish

Question: In what year did Henry Cavendish recognize hydrogen gas as a discreet substance?
Answer: 1766

Question: What does gas produce when burned?
Answer: water

Question: How did Lavoisier produce hydrogen for his experiments?
Answer: reacting a flux of steam with metallic iron through an incandescent iron tube heated in a fire

Question: Who was the first to liquidize hydrogen?
Answer: James Dewar

Question: In what year Did James Dewar first liquidize hydrogen?
Answer: 1898

Question: What year was Deuterium discovered?
Answer: 1931

Question: Who was the first to discover deuterium?
Answer: Harold Urey

Question: What year was tritium discovered?
Answer: 1934

Question: Who invented the hydrogen filled balloons?
Answer: Jacques Charles

Question: What year was hydrogen filled balloons invented?
Answer: 1783

Question: what were the hydrogen lifted airships called?
Answer: Zeppelins

Question: In what year did the first zeppelin make flight?
Answer: 1900

Question: Who made the first non stop transatlantic crossing?
Answer: the British

Question: What year was this done?
Answer: 1919

Question: What year did the airship get destroyed?
Answer: 1937

Question: What city was the ship over when it caught fire?
Answer: New Jersey

Question: In what year did the first hydrogen cooled turbogenerator go into service?
Answer: 1937

Question: What state is the Dayton Power and light Company located?
Answer: Ohio

Question: What year was the first nickel hydrogen battery used?
Answer: 1977

Question: In what year did the hubble space telescope finally get the nickel hydrogen battery?
Answer: 2009

Question: What is the hydrogen atom made up of?
Answer: a proton and an electron

Question: What theory is the hydrogen atom a big part of?
Answer: atomic structure

Question: When was the quantum mechanical treatment of the hydrogen atom developed?
Answer: 1920s

Question: Who observed the specific heat capacity of H2?
Answer: Maxwell

Question: What cause H2 to resemble monatomic gas?
Answer: spacing of the (quantized) rotational energy levels

Question: What theory supports this?
Answer: quantum theory

Question: What percent of normal matter is hydrogen?
Answer: 75%

Question: What percent of atoms is hydrogen?
Answer: 90%

Question: What 2 forms of mass is most of the universe consisted of?
Answer: dark matter and dark energy

Question: Clouds of H2 form what?
Answer: stars

Question: In what states is hydrogen mostly found in the universe?
Answer: atomic and plasma

Question: Hydrogens electron and proton are not bound together in what state?
Answer: plasma

Question: in the interstellar medium, what state is hydrogen in?
Answer: neutral atomic state

Question: The neutral hydrogen found in the damped Lyman-alpha systems dominates what?
Answer: cosmological baryonic density of the Universe

Question: How abundant is hydrogen on the earths surface?
Answer: third most abundant

Question: what produces hydrogen gas?
Answer: bacteria and algae

Question: What molecular form is found in the interstellar medium?
Answer: protonated molecular hydrogen

Question: What generates protonated molecular hydrogen?
Answer: ionization of molecular hydrogen from cosmic rays

Question: On what planet can you find  protonated molecular hydrogen?
Answer: Jupiter