Main Group Elements
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Major product of the Haber process
What is ammonia (for use in fertilizer and explosives)?
The major ore of carbon
What is coal?
Major use of nitrogen gas outside science labs
What is an inert gas to preserve food freshness or light bulb filaments?
Major source of elemental nitrogen
What is air (or the distillation of liquid air)?
Hydrogen is commonly produced from this reactant
What is water?
Most stable allotrope of sulfur
What is S8?
Original name of germanium (before it was isolated)
What is "eka-silicon"?
Common lab "supply" made of aluminosilicates with many pores
What are molecular sieves?
Percentage of elemental oxygen in the atmosphere (+/- 5%)
What is 21%?
Major problem associated with radon
What is it's radioactivity?
Natural source where phosphorus was first extracted by Brandt in 1669
What is urine?
Three major allotropes of carbon
What are diamond, graphite, and fullerene?
Common name for polytetrafluoroethylene
What is teflon? (PTFE)
Most common commercial use of chlorine
What is a disinfectant in water?
Color of iodine in the presence of starch
What is dark blue (iodine clock reaction)?
Major use of gallium (usually as GaAs, GaN, or InGaAs)
What is a semiconductor?
Most common use of elemental silicon
What is a semiconductor (computer chips, solar cells, etc.)?
Chemical name for "chlorine bleach"
What is sodium hypochlorite? (aqueous solution)
Major commercial use of silver bromide
What is the active ingredient in black and white film stock?
Metastable argon compound discovered at the University of Hawaii in 2000
What is HArF?
War where chlorine was first used as a weapon
What is WWI? (1914, Second Battle of Ypres)
Name of arseinc-containing herbicide used during the Vietnam War
What is agent blue (one of the five "rainbow herbicides")?
What are amethyst, quartz, jasper, and opal?
One of the semi-precious gem(s) based on SiO2
Major source of neon
What is the atmosphere? (low-temperature distillation of air, also used for Ar, Kr, and Xe)
The three isotopes of hydrogen
What are hydrogen (H-1), deuterium (H-2), and tritium (H-3)?