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Chapter 3

Chapter 3 Stoichiometry - Calculations with Chemical Formulas and Equations.pdf

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CEM 151

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Chapter 3 Stoichiometry Calculations with Chemical Formulas and EquationsMonday June 16 20141222 PMReaction TypesAvogadros Number and the MoleCombinationMole a unit to count numbers of particlesTwo elements andor compounds combine to form one compoundThe amount of a substance that contains as many elementary entities as 12there are atoms in exactly 12 grams of CABAB231 mole602210A metal element reacts with a nonmetal element to form an ionic compoundFormula WeightsA nonmetal compound reacts with another nonmetal element to The weight of an individual molecule or formula unitform a molecular compoundMolar MassA nonmetal oxide compound reacts with water to form an acidMass of 1 mole of anything in gramsA metal oxide compound reacts with water to form a baseAtomic mass amumolar mass gramsDecompositionPercent CompositionA single reactant is decomposed into two or more substanceselement number of atoms of elementmolar mass of elementmolar mass ABABof compoundThe decomposition of a molecular compound to form its elementsEmpirical FormulasThe decomposition of an ionic compound to form its elementsObtained from percentage composition of elementsDecomposition of carbonates to yield oxides and CO2Give the relative numbers of atoms in a molecule lowest wholenumber ratioDecomposition of chlorates to yield chlorides and O2Molecular FormulasCombustionGive the actual numbers and types of atoms in a moleculeReactions of substances with oxygen to produce
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