Consider the given acid ionization constants. identify the strongest conjugate base. acid ka hno2(aq) 4.6×10−4 hcho2(aq) 1.8×10−4 hclo(aq) 2.9×10−8 hcn(aq) 4.9×10−10 part a no−2(aq) cho−2(aq) cn−(aq) clo−(aq)

The first element on the periodic table of elements is carbon. a. true b. false

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.

On the periodic table, elements are arranged by which of the following. a. mass numbers. b. increasing atomic number. c. alphabetical order. or d. density