Help Please! Due tonight When 1.1323 g of an organic iron compound containing Fe, C, H, and O was burned in O2, 2.1179 g of CO2 and 0.60611 g of H2O were produced. In a separate experiment to determine the mass percent of iron, 0.2686 g of the compound yielded 0.06069 g of Fe2O3. What is the empirical formula of the compound?

100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange