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Chapter 9 Review 1.AgNO 3 + H 2 SO 4 Ag 2 SO 4 +HNO 3 What is the ratio of coefficients: 2 : 1 : 1 : 2 Is there a precipitate formed? yes. Ag 2 SO 4, rule #4. What are the spectator ions? H + and NO 3 - What is the net ionic equation? 2Ag + + SO 4 2- Ag 2 SO 4
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2.K 2 SO 3(aq) K 2 O (aq) + SO 2 (g) What type of reaction is this? Decomposition What is the ratio of the coefficients? 1:1:1 Which compound(s) will dissolve in water? K 2 SO 3 and K 2 O Which compound(s) is a gas? SO 2(g)
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3. PbCl 2 + Li 2 SO 4 PbSO 4 + LiCl What type of reaction is this? Double replacement What are the ratio of coefficients? No reaction Is a precipitate formed? No reaction What symbol would be used to indicate for PbCl 2 ? (s)
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4.Cl 2 + KBr What type of reaction is this? Single replacement Which activity series is used? Nonmetal, Cl - replaces Br - How would you write the gas of bromine? Br 2 What is the ratio of coefficients? 1:2:2:1
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5. Al + Pb(NO 3 ) 3 Will this reaction take place? Yes, Pb is less active than Al What is the product? Al(NO 3 ) 3 + Pb Is there a precipitate? yes? Pb is a metal and will fall out. What is the ratio of coefficients? 1:1:1:1
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6. (NH 4 ) 2 SO 4 + Ca(OH) 2 What is the product? NH 4 OH + CaSO 4 What are the ratio of coefficients? 1:1:2:1 Is there a precipitate? yes, CaSO 4 What are the spectator ions? NH 4 + and OH -
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7. The compounds and molecules that reforms in a chemical reaction is called: ans: product 8. Characteristic of the produce is CO 2 and water: ans: combustion reaction 9. When two or more elements or compounds form a single product: ans: synthesis or combination
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10. When a compound like FeO or a ∆ symbol are seen over the ‘to yield’ arrow: ans: catalyst 11. Ions that do NOT take part in the formation of precipitate in a reaction: ans: spectator ions 12. The ONLY number in a balanced equation that can be changed: and: coefficient
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13. This is used in a single replacement reaction to determine if the reaction will proceed? ans: activity series 14. Characterized by a compound + compound in the reactant: ans: double replacement 15. What is leftover after the spectator ions are removed: ans: net ionic equation
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16. Characterized by having the same number and type of matter on both sides of the ‘to yield’ arrow: ans: balanced equation 17. Given 2Fe 3 (PO 3 ) 2, the number of each element in this compound: Fe P O
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1.Aqueous solutions of lead (II) nitrate and ammonium chloride are mixed 2.Aqueous solution of aluminum chloride and sodium carbonate combine 3.Sulfuric acid reacts with sodium hydroxide 4.Sodium sulfide reacts with hydrochloric acid
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1.If water is the product in the net ionic equation in an acid/base reaction, what does this tell you about the reaction? 2.What type of solution would you have if all the reactants and products were soluble? 3.Where would a net ionic reaction be useful? Hint spectator ions.
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