A sample of rainwater has a pOH of 12.5. What ion is sure to be present in relatively large concentration in this rain sample? A. H3O+
B. OH-
C. HSO4-
D. SO4 2-

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size

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

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.