Explain why a red solid appeared along the line marked S.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

what is the question here. i think you messed up.

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.