Bornite ‍ is a copper ore used in the production of copper. when heated, the following reaction occurs: ‍ if metric tons of bornite is reacted with excess and the process has an yield of copper, what mass of copper is produced?

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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".