Why is water considered a pure substance? a. each water molecule is identical

b. water can be broken down by physical means

c. water molecules are made up of different types of atoms

d. water can be combined with other substances by physical means

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increased stability in the completion of fluorine's outer shell.

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".

i wish i could but this one is weird give me abc and i can solve it.