Ammonia (NH3) is a very important chemical. It is commercially produced using the Haber process as follows: N2 + 3H
+ 2NH3
How many moles of H2, are required to react with excess N2, to produce 60 moles of NH3?

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

Nan element’s square on the periodic table, the number with the greatest numerical value represents the

Which statement characterizes synthetic polymers? a. they come from animals and plants. b. they are found in nature. c. they are made in a lab. d. they are components of starch.