Precipitation Reaction Answers - PRECIPITATION REACTIONS...

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PRECIPITATION REACTIONS WORKSHEET ANSWER KEY 1. On the basis of the general solubility rules predict which of the following substances are likely to be soluble in water. a. aluminum chloride Soluble b. nickel(II) sulfate Soluble c. calcium carbonate Insoluble d. silver carbonate Insoluble e. ammonium chromate Soluble f. ammonium bromide Soluble g. iron(III) hydroxide Insoluble h. barium nitrate Soluble i. potassium carbonate Soluble j. sodium sulfate Soluble k. copper(II) chromate Insoluble l. mercury(I) acetate Soluble m. ammonium phosphate Soluble n. chromium(III) sulfide Insoluble o. lead(II) sulfate Insoluble 2. On the basis of the general solubility rules write the formula of the precipitate that forms when aqueous solutions of the following substances are mixed. If no precipitate is likely, indicate "NO": a. silver nitrate and sodium iodide, AgI b. sodium sulfate and barium chloride BaSO 4 c. sodium phosphate and magnesium acetate Mg 3 (PO 4 ) 2 d. ammonium chromate and potassium sulfide No Rean. e. calcium chloride and sodium sulfate CaSO 4 f. lead(II) nitrate and barium chloride PbCl 2 g. manganese(II) sulfate and sodium sulfide MnS h. sulfuric acid and calcium nitrate CaSO 4 i. ammonium chloride and silver(I) nitrate AgCl j. barium nitrate and sodium hydroxide No Rean.
k. phosphoric acid and nickel(II) chloride Ni 3 (PO 4 ) 2 l. potassium carbonate and copper(II) sulfate CuCO 3 m. iron(III) chloride and sodium hydroxide Fe(OH) 3 n. cobalt(II) nitrate and ammonium sulfide CoS o. silver(I) nitrate and potassium chloride AgCl p. sodium carbonate and strontium nitrate SrCO 3 q. potassium chromate and mercury(II) nitrate HgCrO 4 r. barium nitrate and sulfuric acid BaSO 4 3. On the basis of the general solubility rules write a balanced molecular equation for the precipitation reactions that take place when the following aqueous solutions are mixed. If no precipitation reaction is likely for the reactants given, indicate "NO." (s=ppt., aq=solution) a. hydrochloric acid and silver(I) nitrate HCl(aq) + AgNO 3 (aq) AgCl(s) + HNO 3 (aq) b. nitric acid and ammonium chloride NO REACTION c. sulfuric acid and barium nitrate H 2 SO 4 (aq) + Ba(NO 3 ) 2 (aq) BaSO 4 (s) + 2HNO 3 (aq) d. hydrochloric acid and lead(II) acetate 2HCl(aq) + Pb(C 2 H 3 O 2 ) 2 (aq) PbCl 2 (s) + 2HC 2 H 3 O 2 (aq) e.

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