SeCl6 + O2 --> SeO2 + 3Cl2 what type of equation is this???

a sequence is a function whose domain is the set of natural numbers.

natural numbers are all the negative and positive integers

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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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".