120sample_exam_exam_2_2004

120sample_exam_exam_2_2004 - Chem 120 Sample Questions for...

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Sample Questions for exam 2 Chapters 5, 6, and 7 deal with naming compounds, balancing equations and understanding three types of reactions: precipitation, acid-base and oxidation-reduction. Practice is the best way to develop skill in these areas. Problems at the end of each chapter provide additional practice. Balance the following equations: a) _____ KClO 3 --------> _____ KCl + _____ O 2 b) _____ C 5 H 12 + _____ O 2 ------> _____ CO 2 + _____ H 2 O c) _____ Ca + _____ H 2 O ------> _____ Ca(OH) 2 + _____ H 2 d) _____ H 2 SO 4 + _____ KOH ------> _____ K 2 SO 4 + ______ H 2 O Which of the above reactions is a combustion reaction? ____________ Which of the above reactions is an acid-base reaction? _____________ Which of the above reactions is an oxidation-reduction reaction? ______________ Give the formulas for the following: a. sodium sulfate ________________ b. potassium nitrate ________________ c. calcium hydroxide ________________ What is the most likely formula for a compound of sodium and oxygen? A. NaO
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120sample_exam_exam_2_2004 - Chem 120 Sample Questions for...

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