The table below provides some information about an unidentified element. based on this information, the unidentified element is best classified as which of the following? a) a metal in group 1 b) a metal in group 14 c) a nonmetal in period 4 d) a metalloid in period 5

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.