Lecture 7 Chemical Reactions & Stoichiometry

Lecture 7 Chemical Reactions & Stoichiometry -...

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Lec-7: Chemical Reactions & Stoichiometry Roy A. Lacey, Stony Brook University; Che 131, Spring 2011 1
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Writing Balanced Chemical Equations 1442443 In chemical reactions, atoms are neither created nor destroyed (atoms and charge are conserved) 1442443 Roy A. Lacey, Stony Brook University; Che 131, Spring 2011 2
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Writing Balanced Chemical Equations Important principles: ¾ Every chemical compound has a formula which cannot be altered which cannot be altered. 9 The state of the compound is usually specified ¾ The number of atoms of each type must be the same on The number of atoms of each type must be the same on both sides of the equation H 2 CO 3 (aq) H 2 O(l) + CO 2 (g) H 2 SO 3 (aq) H 2 O(l) + SO 2 (g) Roy A. Lacey, Stony Brook University; Che 131, Spring 2011 3
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Writing Balanced Chemical Equations Roy A. Lacey, Stony Brook University; Che 131, Spring 2011 4
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Writing Balanced Chemical Equations Roy A. Lacey, Stony Brook University;
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