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Final Exam Review 3

Final Exam Review 3. Copy down and answer the following questions. You may use your book or notebook if necessary. What is the oxidation number of an atom?. 2. Write balanced chemical formulas for the following: Ca +2 + Cl -1 K +1 + O -2 Mg +2 + S -2 Al +3 + Br -1

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Final Exam Review 3

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  1. Final Exam Review 3

  2. Copy down and answer the following questions. You may use your book or notebook if necessary. • What is the oxidation number of an atom?

  3. 2. Write balanced chemical formulas for the following: • Ca+2 + Cl-1 • K+1 + O-2 • Mg+2 + S-2 • Al+3 + Br-1 • Ca+2+ N-3

  4. Answers: • The oxidation number of an atom is the number of electrons an atom will lose, gain, or share in order to become stable. • CaCl2 • K2O • MgS • AlBr3 • Ca3N2

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