In 1909 Fritz Haber discovered the workable conditions under which nitrogen, N2(Q), and hydrogen, Hz(Q), would combine using to produce ammonia. The conditions included
medium temperature (-500°C), very high pressure (-351kPa), and an iron catalyst. The reaction is represented by
the equation:
N2(g) + 3H2(g) — 2NH3(g)
How many grams of Ny are required to favoduce 240.0g NH37
A)
17.1g N2
B)
120.0g N2
c)
197.7g N2
D)
291.49 N

indium, and thallium have three electrons i think

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

elements make up everything, and they combine to make compounds.

the answer is c