Which of the following parameters may be adjusted to influence the efficiency of a GC separation? (note there may be more than one correct response)

A frequency change is not observed, however, the interaction can involve a permanent energy transfer.

Place the following statements regarding mobile phase preparation into the correct order: (#1-6)

Identify which of the following is the acids, bases and their conjugates by tracking the H’s. **Answer each as only “acid”, “base”, “conj acid”, “conj base” SPELL EXACTLY AS SHOWN.    A.) NaOH(aq) + HNO3(aq) → NaNO3(aq) + H2O(l)                +                                        +      B.) NH3 (aq) + H2O (l) ⇆ NH4+ (aq) + OH− (aq)               +                           +      C.) CO32− (aq) + H2O (l) ⇆ HCO3− (aq) + OH− (aq)               +                                  +      D.) 2NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + 2H2O(l)                    +                                        +     

(Transformations MC)Which image has translational symmetry?

In LC analytes with strong affinity for the stationary phase:

What is any substance that provides hydroxide ions, OH-, when dissolved in water?

Plane polarized light implies that all oscillations of either the electric or magnetic field lie in a __________ plane.

(Percent Rate of Change HC)A plumber is hired with an annual salary of $55,000. The function a(t) = 55,000 ⋅ (1.12)t models the annual salary, a(t), in dollars, for a given number of years.Part A: Find the percent rate of change. Show all necessary steps. (5 points)Part B: Explain the meaning of the percent rate of change in the context of the problem. (5 points)

(Scale Factor and Dilation HC)Two rectangular pyramids are given.The smaller pyramid is a dilation of the larger pyramid.Part A: Determine the scale factor. Show or explain all the necessary steps. (5 points)Part B: If the volume of the larger pyramid is 384 in3, show how the scale factor can be used to determine the volume of the smaller pyramid. (5 points)