The title for your essay should be

Which of these is NOT a first or second person pronoun?

Level 1 – TLC Markup Assume this uses standard phase conditions. Calculate the Rf of the 2nd most polar compound using the following chromatogram and ruler.Assume the ruler’s zero is aligned with the bottom of the chromatogram’s edge.Each circle represents a different compound. Margin of error 0.02    

Level 3 – IR Spectrum Reading (2 of 2) A: B: C:D:  Which of the following spectra would best correspond to propanal?  Note: There is only 1 correct answer. Select the best fit. Note: Do not attempt to match spectra to slides to determine the true identity of each spectra to answer this question. This question is designed to determine if you understand how to generally approach peak processing.

Qualitative data are:

The illuminator should be turned down before placing a slide on the stage.

The fine focus knob is used for initial focusing.

A slide with a specimen suspended in water is called a:

Total magnification when using the high power lens is:

If the field of view at 4x is 2 mm, the field of view at 40x is: