8. A sample of black ink is made up of three pure dyes, A, B and C. Given that
A is the least soluble in ethanol and B is the most soluble. Show a
chromatogram that can be used to prove that the sample of black ink actually
contains the mentioned dyes.

Which of the following units is not an official si unit? mole liter kilogram ampere

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.