Transcription of Chapter 2 Stoichiometry
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Chapter 2 Stoichiometry
8/2/2004 OFB Chapter 21 Chapter 2 Stoichiometry 2-1 Writing Balanced Chemical Equations 2-2 Using Balanced Chemical Equations 2-3 Limiting Reactant and Percentage Yield 2-4 The Stoichiometry of Reactions in Solution 2-5 the Scale of Chemical Processes8/2/2004 OFB Chapter 22 Chapter 2 Chapter 2--1 1 Balancing Chemical EquationsBalancing Chemical Equations Chemical Reactions tell us two things What atoms or molecules are reacting together to form other products How muchreactant & product are formed A Chemical reaction is a statement of experimental fact:KClO3 (s) KCl (s) + O2 (g) Reactants on left, products on right What is equation missing? Need balanced reaction Why?8/2/2004 OFB Chapter 23 Chemical Chemical EquationsEquations Because the same atoms are Because the same atoms are present in a reaction at the present in a reaction at the beginning and at the end, the beginning and at the end, the amount of matter in a system amount of matter in a system does not change.
8/2/2004 OFB Chapter 2 3 Chemical Equations • Because the same atoms are present in a reaction at the beginning and at the end, the amount of matter in a system does not change.
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