You have 32 million atoms of Uranium - 238. How many atoms will be left after 5 half-lives? (hint you have to divide it in half five times.)

the volume increases

a) the particles of the chair are strongly held together.

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".