When iron (Fe) reacts with molecular oxygen (O2), a new compound is formed. This compound is the Fe2O3 found in rust. 4 Fe + 3 O2 → 2 Fe2O3

If 112 g of Fe combines with 48 g of O2, how much Fe2O3 is formed?
A. 48 g Fe2O3
B. 112 g Fe2O3
C. 88 g Fe2O3
D. 160 g Fe2O3

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If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

What is the vapor pressure of a solution with a benzene to octane?

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .