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Calculations Based on Chemical Equations
STOICHIOMETRY Calculations Based on Chemical Equations
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Iron (III) oxide reacts with carbon monoxide to form iron and carbon dioxide.
Fe2O3 + CO Fe + CO2 3 2 3 How many CO molecules are required to react with 25 particles of Fe2O3?
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Iron (III) Oxide reacts with carbon monoxide to form iron and carbon dioxide.
Fe2O3 + CO Fe + CO2 3 2 3 How many iron atoms can be produced by the reaction of 2.5 x 105 particles of Fe2O3?
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STOICHIOMETRIC RELATIONSHIPS
Formulas can also represent MOLES of substances involved in chemical reactions. Equations define reaction ratios, i.e. the molar ratios of reactants and products
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Stoichiometry Mole Map
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What mass of CO is required to react with 146 grams of iron (III) oxide?
Fe2O3 + 3CO 2Fe + 3CO2
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What mass of iron (III) oxide is required to produce 8
What mass of iron (III) oxide is required to produce 8.65 grams of carbon dioxide? Fe2O3 + 3CO 2Fe + 3CO2
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