if you use 3.3 grams of ethylene and 9.9 grams of oxyen gas, how many moles of carbon dioxide gas will you produce?

b) mutualism

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i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

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".