5. Rust (Fe2O3) is produced when iron (Fe) reacts with oxygen (O2). Calculate the number of grams of rust produced when 12 gram of iron react with oxygen.

mole ratio = Fe:O2 = 2 : 3

36 grams of iron = how many moles?

well, 36/56 = 0.64 moles

multiply this by 1.5 =0.96 moles

this * 16 =15.43 grams

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation:

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