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Percent of oxygen in iron(II) oxide.? Why we multiply magnifications (Me*Mo) in compound microscope?why not to add? What mass of PCl5 will be produced with the given masses of both reactants? 30 g of PCl5 and 50 g of Cl2? Sigma n = 1 to infinity cos^2na = 1/2(n + (cos(n+1)a sin n a / sina ))? I need that solution by tomorrow. Could someone help me, please????????????? P(x) = x² - 3x + 9, replace x by 3 and calculate P(3).
P(3) =?