An unknown element forms a yellow ion, XO 4 ^ 2- . It forms a precipitate with silver ions. If 48.0 of a 0.250 mol Lof silver ions is added to a solution of the unknown ion, 1.856 g of a red-brown precipitate are formed. Determine the identity of metal X

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.