Practice04.1aAnswers.ppt - General Chemistry I Answers for...

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11/23/18 1 General Chemistry I PowerPoint Presentation by Alberto A. Alvarez, Jr. MSIP Grant No. P120A80073-98 U.S. Department of Education Answers for Practice Exercise 04.1a
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11/23/18 2 1. K 2 CrO 4 Soluble – Rule #2 2. Mg(NO 3 ) 2 I. Soluble – Rule #1 3. PbCl 2 4. Fe(OH) 2 Insoluble – Rule #3 Insoluble – Rule #5 5. BaSO 4 Insoluble - Rule #4 I hope these solutions will be of help to you. 1. HCl(aq) + Hg 2 (NO 3 ) 2 (aq) Hg 2 Cl 2 (s) + HNO 3 (aq) 2 2 H + (aq) + 2 Cl - (aq) Hg 2 +2 (aq) + 2 NO 3 -1 (aq) + Hg 2 Cl 2 (s) + 2 H +1 (aq) + 2 NO 3 -1 (aq) Hg 2 +2 (aq) + 2 Cl - (aq) Hg 2 Cl 2 (s) II . 2 2
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11/23/18 3 2. H 3 PO 4 (aq) + KOH(aq) K 3 PO 4 (aq) + H 2 O( l ) 3 3 H + (aq) + PO 4 -3 (aq) 3 K + (aq) + 3 OH - (aq) + 3 K + (aq) + PO 4 -3 (aq) + 3 H 2 O( l ) H + (aq) + OH - (aq) H 2 O( l ) 3 3. KHCO 3 (aq) + HCl(aq)
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