Given the balanced equation representing a reaction:
4nh3 + 5o2 ==> 4no + 6h2o
what is the minimum number of moles of o2 that are needed to completely react with 16 moles of nh3?
(1) 16 mol (3) 64 mol
(2) 20. mol (4) 80. mol

a plasma is a warm ionized gasoline consisting of approximately equal numbers of definitely charged ions and negatively charged electrons. the characteristics of plasmas are notably unique from the ones of ordinary neutral gases in order that plasmas are considered a awesome "fourth kingdom of remember."

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.