- How many moles of carbon atoms and how many carbon atoms, respectively, are in 120.11 g of carbon?

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Matrices operations. Math help? Show that (cosx-sinx) (cos2x+sinx) =cos2x? Ms and blind help with house? Suppose that a stomach is not producing stomach acids. What happens if you take antiacids? *emergency* $5000 is divided amoung A, B, C so that A has twice as much as B, and B has quarter as much as C.
a). Find A:B:C.?