Name ___________ WPHS Chemistry Unit 4 Chemical Reactions Bergmann-Sams -1- Name ___________ Chemistry: Unit 4 Outline: Chemical Reactions Assignment WB Page Number Podcast 4.1 (CB 1-3) Online Worksheet A pg 7-9 Podcast 4.2 (CB 5-9) Online Demo: Types of Reactions In Class Pg 10-12 Score Out of Worksheet B Lab: Small Scale Single Replacement Podcast 4.3 (CB 11-13) Worksheet C Lab: Small Scale Double Pg 4 Online Pg 13-15 Pg 5-6 100 100 Online Pg 16 Teacher Handout Pg 17-20 In Class 100 100 Replacement Podcast 4.4 (CB 15-17) Worksheet D Technology Lab Worksheet E (Review) Unit 4 Exam (You must score 85/100 on all assignments with a number to move to the next unit. For those assignments with a check, you need to do it to the satisfaction of your teacher) -2- Name ___________ Unit 4 Chemical Reactions: Composition Book Outline 8-1: Describing Chemical Change 1 Converting Word Equations into Formulaic Equations (pg 203-206) Question: Answer the following question What is the difference between a word equation and a chemical equation Define Catalyst Copy: Table 8.1 on page 206 3 Balancing Chemical Equations (pg 207-211) Read the section and: “Balancing Chemical Equations” and come up with an analogy like the bicycle and write the balanced chemical equation. Leave the rest of the page blank 8-2: Types of Chemical Equations 5 Reaction Types (pgs 212-216) Define: Combination Reactions, Decomposition Reaction, Single Replacement Reaction, Double Replacement Reaction, Combustion Reaction Do one at a time with the examples underneath each List: Two examples of each type (written with formulas—not words) 7 Predicting Single Replacement Reactions Copy: Table 8.2 on page 217 9 11 13 Predicting Single Replacement Reactions Leave blank for teacher notes Predicting and Writing Double Replacement Reactions Leave blank for teacher notes Predicting and Writing Double Replacement Reactions Leave blank for teacher notes 8-3: Reactions in Aqueous Solutions 15 17 Ionic and Net Ionic Equations (pg 225-228) Leave blank for teacher notes Ionic and Net Ionic Equations (pg 225-228) Leave blank for teacher notes -3- Name ___________ Activity Series of Metals Lab Purpose: To observe an activity series of different metals. Procedure: 1. Using the well plates, select a row of wells for each solution listed in the data table. Make sure that you write down which letter and number your wells are for each solution. There should be three wells for each solution (one of the three for each of the metals). 2. Put five drops of each solution in the wells chosen for that solution. 3. Put one piece of magnesium in one of the wells for each solution. For example, you should have a well of copper sulfate with magnesium in it, a well of magnesium sulfate with magnesium in it, and a well of sodium chloride with magnesium in it, a well of zinc sulfate with magnesium in it and a well of silver nitrate with magnesium in it. 4. Repeat step 3 with copper instead of magnesium. 5. Repeat step 3 with zinc instead of magnesium. 6. After l minute has passed, make observations of both the metal strips and the solutions. Put these observations in a data table in your comp book that looks like the one below. Label this data table as 1 minute. 7. After 5 total minutes have passed, take another set of observations. Make another data table like the one below and label it 5 minutes. 8. After 15 total minutes have passed, take another set of observations. Again, make another data table and label it 15 minutes. Data Table: CuSO4 MgSO4 NaCl ZnCl2 AgNO3 Cu metal Mg metal Zn metal Analysis Questions: (as always with labs, these questions should be written in complete sentences) 1. Why doesn’t the metal react with the same metal solution? 2. In which wells did the appearance of the metal change? Be sure to tell your teacher what both of the reactants of the well were. 3. Write a balanced equation for each visible reaction between a metal and it’s solution. Be sure to identify what types of reactions these are. 4. Based on the results of your experiment construct your own activity series for the five metals. Put the most active metal first and the least active metal last. Be sure to include your reasoning for your rankings. 5. In a short summary paragraph, describe and explain the patterns that you see in your reaction table. -4- Name ___________ Double Replacement Lab Use Beral Pipets to add each solution on the grid. For those that have a reaction occur, describe the reaction. For those that do not, record NVR (No visible reaction) When done you need to: 1. Write out each complete reaction that occurs (you must balance it) 2. Write out the ionic equation for each reaction that occurs. 3. Write out the net-ionic equation for each reaction that occurs. Put “flimsy” over the top of this page and mix all of the chemicals. Do not mix the same chemical with the same. Chemical NaCl AgNO3 Pb(NO3)2 Na2SO4 BaCl2 NaOH Na3PO4 NaCl AgNO3 Pb(NO3)2 Na2SO4 BaCl2 NaOH Na3PO4 X X X X X X XX X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X -5- Name ___________ Data Table: Write in your observations here. Chemical NaCl AgNO3 Pb(NO3)2 Na2SO4 NaCl AgNO3 Pb(NO3)2 Na2SO4 BaCl2 NaOH Na3PO4 -6- BaCl2 NaOH Na3PO4 Name ___________ Equation Worksheet A: Balancing Chemical Equations Balance the following equations and identify the type of reaction: (Double Replacement, Single Replacement, Combination, Decomposition, or Combustion) 1) __HgO 2) __HCl + __Mg __H2 + MgCl2 3) __CH4 + __O2 __CO2 + __H2O Type: ________________ 4) __C6H12O6 + __O2 __CO2 + __H2O Type: ________________ 5) __H2 + __O2 __H2O Type: ________________ 6) __H2 + __N2 __NH3 Type: ________________ 7) __NO + __O2 __NO2 Type: ________________ 8) __Al2O3 9) __CaO + __H2O __Hg + __Al __O2 + Type: ________________ Type: ________________ __O2 Type: ________________ __Ca(OH)2 Type: ________________ 10) Hydrogen gas reacts with iodine to produce hydroiodic acid. Type: ________________ 11) Sulfur reacts with oxygen to produce sulfur dioxide. Type: ________________ -7- Name ___________ 12) Calcium acetate reacts with sodium carbonate to produce calcium carbonate and sodium acetate. Type: ________________ 13) Write the chemical reaction that shows how rust forms: (Iron III oxide) Type: ________________ 14) Iron combines with oxygen and water to form iron (III) hydroxide Type: ________________ 15) Sulfur trioxide is bubbled through water to produce sulfuric acid Type: ________________ -8- Name ___________ 16) Copper metal is made by treating copper ore the following way: Copper (II) sulfide is heated with carbon and oxygen to produce copper and sulfur dioxide and carbon dioxide. Type: ________________ 17) Copper-bottomed cooking pans turn black because copper combines with oxygen to form copper (II) oxide. Type: ________________ 18) Magnesium hydroxide neutralizes stomach acid, HCl, to produce magnesium chloride and water. Type: ________________ -9- Name ___________ Equation Worksheet B: Single Replacement Reactions A. Predict the products and balance the following single replacement reactions. If no reaction occurs write N.R. For transition metals use the following charges: Iron: Fe3+ Lead: Pb4+ Mercury: Hg2+ Copper: Cu1+ 1. Fe + CuCl2 2. Hg + Sn(SO4)2 3. Ba + Ni3(PO4)2 4. Pb + Au(NO3)3 5. Li + HOH 6. K + AgCl 7. Ca + NaOH 8. Cu + Fe(OH)3 9. Fe + Cu(OH)2 - 10 - Name ___________ 10. Lead II Chloride + Magnesium 11. Barium Nitrate + Zinc 12. Potassium + Tin IV Nitrate 13. Copper + Silver Nitrate 14. Sodium Phosphate + Potassium 15. Gold + Hydrochloric acid 16. Magnesium + Aluminum Hydroxide 17. Iron + Copper II Sulfate - 11 - Name ___________ 18. Iron + Nickel II Iodide 19. Sodium Permanganate + Calcium 20. hydrochloric acid + Zinc 21. Aluminum + Iron II dichromate - 12 - Name ___________ Equation Worksheet C: Double Replacement Reactions Complete and Balance the following reactions. If no reaction occurs then write N.R. 1) Na2SO4 (aq) + Ba(NO3)2(aq) ----> 2) NaNO3(aq) + NH4Cl(aq) -----> 3) Pb(NO3)2 (aq) + Na2CrO4(aq) 4) ZnCl2(aq) + K2CO3(aq) ----> 5) Ammonium Chloride + Silver Nitrate ------> 6) Barium Acetate + Copper II Chromate - 13 - Name ___________ 7) Solutions of Silver Nitrate and ammonium chloride are mixed 8) Solutions of Lead II nitrate and Sodium Chloride are mixed 9) Solutions of zinc sulfate and magnesium chloride are mixed 10) Solutions of Ammonium phosphate and Zinc Chlorate are mixed 11) Solutions of Aluminum bromide and Iron II Iodide are mixed - 14 - Name ___________ 12) Solutions of sodium sulfide and Iron II Chlorate are mixed 13) Solutions of copper II bromide and potassium phosphate are mixed 14) Solutions of barium acetate and zinc sulfate are mixed - 15 - Name ___________ Equation Worksheet D: Net Ionic Equation Worksheet For the following reactions write the: a. Complete Equation (Indicate states): Balance b. Ionic Equation c. Net Ionic Equation 1. ZnCl2 (aq) + Na2S (aq) ZnS(s) + NaCl(aq) 2. (NH4)3PO4 + AgNO3 3. Magnesium Nitrate + Potassium phosphate Magnesium Phosphate (s) + Potassium Nitrate. 4. Lead II Acetate + Potassium Iodide - 16 - Name ___________ Equations Worksheet E: Mixed Types of Reactions Directions: For each of the following reactions: 1) Complete the reaction (Put NR if no reaction takes place) 2) Balance it 3) Identify the type of reaction (Single Replacement, combination, double replacement, decomposition, or combustion) 4) Indicate states of matter for each reaction 1) NaCl + AgNO3 2) Fe + CuSO4 3) C4H10 + O2 4) Ba(NO3)2 + Na2SO4 5) AgNO3 + Li 6) LiBr + Cu 7) MgS + NaOH - 17 - Name ___________ 8) Hg + LiCl 9) Li + HgCl2 10) C3H8 + O2 11) Ammonium Nitrate is added to sodium chloride 12) Lithium Chloride is added to Zinc Phosphate 13) Zinc is added to lithium chloride 14) Iron is added to a solution of silver nitrate - 18 - Name ___________ 15) A solution of copper II sulfate is added to an iron nail 16) Octane (C8H18) is burned in air 17) A solution of Tin IV sulfate is added to a solution of ammonium hydroxide 18) Sodium hydroxide is added to hydrochloric acid 19) Calcium hydroxide is added to sulfuric acid 20) Nickel is added to hydrochloric acid 21) Strontium is added to water 22) Hydrochloric acid is added to copper metal - 19 - Name ___________ 23) Solid bismuth is added to a solution of barium hydroxide. 24) Methanol (CH3OH) is burned in air 25) Solid gold is added to hydrochloric acid - 20 - Name ___________ Name: ______________ Period: ______________ Balancing Reactions Worksheet Synthesis and Decomposition Part A (Review): Balance the following reactions and indicate whether they are synthesis or decomposition reactions. 1. 2. 3. 4. 5. SO3 + H2O HgO Al2O3(s) P + H2O ---> ---> ---> O2 ---> H2 Hg Al(s) ---> H2SO4 + O2 + O2 + O2(g) P2O5 Type:_____________ Type:_____________ Type:_____________ Type:_____________ Type:_____________ Part B: Predict the products and indicate type (include states): 1. KBr ---> Type: 2. Li + Cl2 ---> Type: 3. Rb2CO3 ---> Type: 4. NiO ---> Type: 5. CO2 + H2O---> Type: _________ _________ _________ _________ _________ Part C: Predict the products, balance, include states, and indicate type. 1. Potassium Chlorate is heated vigorously Type: _________ 2. Molten sodium is reacted with chlorine gas Type: _________ 3. Calcium is added to water Type: _________ 4. Zinc carbonate is heate Type: _________ 5. Aluminum chloride decomposes into it's elements Type: _________ 6. Cesium hydroxide is heated Type: _________ 7. Sulfurous Acid is heated Type: _________ 8. Potassium and Bromine are reacted Type: _________ 9. Potassium Oxide and Carbon dioxide react Type: _________ 10. Calcium chlorate is heated Type: _________ 11. Sodium hydroxide is heated Type: _________ - 21 - Name ___________ 12. Iodine reacts with hydrogen Type: _________ - 22 - Name ___________ Balancing Chemical Equations Worksheet 1 Name Period Balance the following equations: 1. 2HgO 2Hg + O2 2. HCl + Mg H2 + MgCl2 3. CH4 + 2O2 CO2 + 2H2O 4. C6H12O6 + 6O2 6CO2 + 6H2O 5. 2H2 + O2 2H2O 6. 2H2 + Cl2 2HCl 7. 3H2 + N2 2NH3 8. 2 NO + O2 2NO2 9. 3Al2O3 4Al +2O2 10. CaO + H2O Ca(OH)2 already balanced 11. Hydrogen gas reacts with iodine to produce hydrogen iodide. H2+ I2 2HI 12. Sulfur reacts with oxygen to produce sulfur dioxide. S + O2 SO2 13. Calcium acetate reacts with sodium carbonate to produce calcium carbonate and sodium acetate. Ca(C2H3O2)2 + Na2CO3 2NaC2H3O2 +CaCO3 14. Write the chemical reaction that shows how rust forms: 4Fe + 3O2 2Fe2O3 15. Iron combines with oxygen and water to form iron (III) hydroxide Fe + O2 + 6H2O 4Fe(OH)3 16. Sulfur trioxide is bubbled through water to produce hydrogen sulfate SO3+ H2O H2SO4 already balanced 17. Copper metal is made by treating copper ore the following way: Copper (II) sulfide is heated with carbon and oxygen to produce copper and sulfur dioxide and carbon dioxide. CuS +C + 4O2 SO2 + CO2 + Cu Copper-bottomed cooking pans turn black because copper combines with oxygen to form copper (II) oxide. 2Cu + O2 2CuO 18. Any Group I metal reacts with water to produce hydrogen gas and the metal hydroxide. Write the reaction that occurs when rubidium is dropped in water. 2Rb + 2HOH 2RbOH + H2 - 23 - Name ___________ 19. Magnesium hydroxide neutralizes stomach acid, HCl, to produce magnesium chloride and water. Mg(OH)2 + 2HCl MgCl2 + 2H2O 20. Limestone is dissolved by acid (Remember our carbonate lab in September?). This is why statues are dissolved by acid rain. First, the acid is formed in the atmosphere. Second, it falls on the statue and dissolves it. Write two reactions that show how this happens. First, nitrogen dioxide reacts with water to form hydrogen nitrate. Second, hydrogen nitrate combines with calcium carbonate to form carbon dioxide and water and calcium nitrate. 4NO2+ 2H2O 4HNO3 balancing is difficult extra credit if you can 2HNO3 + CaCO3 Ca(NO3)2+ H2O+ CO2 Balancing Reactions Worksheet Synthesis and Decomposition Part A (Review): Balance the following reactions and indicate whether they are synthesis or decomposition reactions. 1. SO3 2. + H2O ---> H2SO4 2H2O ---> 2H2 + 3. 4. 2HgO 2Al2O3(s) ---> ---> 2Hg + 4Al(s) + 5. 4P 5O2 ---> + balanced Type: synthesis O2 Type: decomposition O2 3O2(g) Type: decomposition Type: Decomposition 2P2O5 Type: Synthesis Part B: Predict the products and indicate type (include states): 1. 2KBr ---> 2K + Br2 Type: decomp 2. 2Li + Cl2 ---> 2LiCl Type: synth 3. Rb2CO3 ---> Rb2O + CO2 Type: decomp 4. 2NiO ---> 2Ni + O2 Type: decomp 5. CO2 + H2O---> H2CO3 Type: synth Part C: Predict the products, balance, include states, and indicate type. 1) Potassium Chlorate is heated vigorously 2KClO3 2KCl + 3O2 2) decomposition Molten sodium is reacted with chlorine gas - 24 - Name ___________ 2Na + Cl2 2NaCl 3) Calcium is added to water Ca + 2HOH Ca(OH)2 synthesis synthesis 4) Zinc carbonate is heate ZnCO3 ZnO + CO2 decomposition 5) Aluminum chloride decomposes into it's elements 2AlCl3 2Al + 3Cl2 decomposition 6) Cesium hydroxide is heated 4CsOH 2Cs2O + 2H2 decomposition 7) Sulfurous Acid is heated H2SO3 H2O + SO2 decomposition 8) Potassium and Bromine are reacted 2K+ Br2 2KBr decomposition 9. Potassium Oxide and Carbon dioxide react K2O + CO2 K2CO3 decomposition 10. Calcium chlorate is heated Ca(ClO3)2 CaCl2 + 3O2 decomposition 1) Sodium hydroxide is heated 4NaOH 2Na2O + 2H2 decomposition 12. Iodine reacts with hydrogen I2 + H2 2HI synthesis - 25 - Name ___________ Single Replacement Reactions Worksheet Do work on a separate sheet of paper Name: A. Predict the products and balance the following single replacement reactions. If no reaction occurs write N.R. 1) Fe 2) Hg 3) Ba 4) F2 5) Cl2 6) Pb 7) Li 8) K 9) Ca 10) Cu 11) Fe 12) Br2 + + + + + + + + + + + + CuCl2 Sn(SO4)2 Ni3(PO4)2 NaCl NH4Br Au(NO3)3 HOH AgCl NaOH Fe(OH)3 Cu(OH)2 KI B. Write the reactions and predict the products of each of the following single replacement reactions. Balance all reactions. If no reaction occurs write N.R. 13) Lead II Chloride + Magnesium 14) Barium Nitrate + Zinc 15) Potassium + Tin IV Nitrate 16) Copper + Silver Nitrate 17) Sodium Phosphate + Potassium 18) Gold + Hydrogen chloride 19) Magnesium + Aluminum Hydroxide 20) Iron + Copper II Sulfate 21) Iron + Nickel II Iodide 22) Sodium Permanganate + Calcium 23) Hydrogen Chloride + Zinc 24) Aluminum + Iron II dichromate - 26 - Name ___________ Name:____________ Period:____________ Mixed Types of Reactions Directions: For each of the following reactions: 5) Complete the reaction (Put NR if no reaction takes place) 6) Balance it 7) Identify the type of reaction 8) (Single Replacement, combination, double replacement, decomposition, or combustion) 9) Indicate states of matter for each reaction 26) NaCl + AgNO3 27) Fe + CuSO4 28) C4H10 + O2 29) Ba(NO3)2 + Na2SO4 30) AgNO3 + Li 31) LiBr + Cu 32) MgS + NaOH 33) HG + LiCl 34) Li + HgCl2 35) C3H8 + O2 36) Ammonium Nitrate is added to sodium chloride 37) Lithium Chloride is added to Zinc Phosphate 38) Zinc is added to lithium chloride 39) Iron is added to a solution of silver nitrate 40) A solution of copper II sulfate is added to an iron nail 41) Octane (C8H18) is burned in air 42) A solution of Tin IV sulfate is added to a solution of ammonium hydroxide 43) Sodium hydroxide is added to hydrochloric acid 44) Calcium hydroxide is added to sulfuric acid 45) Nickel is added to hydrochloric acid 46) Strontium is added to water 47) Hydrochloric acid is added to copper metal 48) Solid bismuth is added to a solution of barium hydroxide. 49) A solution of potassium iodide is added to liquid bromine. 50) Methanol (CH3OH) is burned in air 51) Solid gold is added to hydrochloric acid - 27 - Name ___________ Ws E KEY Types of Reactions Work Sheet Directions: For each of the following reactions: Complete the reaction (Put NR if no reaction takes place) Balance it Identify the type of reaction (Single Replacement, combination, double replacement, decomposition, or combustion) Indicate states of matter for each reaction 1) Sodium chloride plus silver nitrate NaCl(aq)+AgNO3(aq) AgCl(s) + NaNO3(aq) Double Replacement 2) Iron plus copper II sulfate 2Fe(s) + 3CuSO4(aq) 3Cu(s) + Fe2(SO4)3(aq) Fe(s) + CuSO4(aq) Cu(s) + FeSO4(aq) Single Replacement 3) Butane (C4H10) burns completely in the presence of oxygen C4H10 (g) + 13/2O2 (g) 4CO2 (g) + 5H2O (g) 2C4H10 (g) + 13O2 (g) 8CO2 (g) + 10H2O (g) Combustion 4) Barium Nitrate + sodium sulfate Ba(NO3)2 (aq) + Na2SO4 (aq) BaSO4 Double Replacement 5) Silver nitrate Plus Lithium AgNO3(aq) + Li (s) - LiNO3 Single Replacement (aq) (s) + 2NaNO3 (aq) + Ag 6) Lithium bromide plus copper LiBr (aq) + Cu No reaction 7) Magnesium sulfide plus sodium hydroxide. MgS (s) + NaOH (aq) No reaction 8) Liquid mercury reacts with aqueous lithium chloride Hg (l) + LiCl (aq) No Reaction 9) Solid Lithium is dropped into a solution of Mercury II chloride 2Li (s) + HgCl2 (aq) 2LiCl (aq) + Hg (l) - 28 - Name ___________ Single Replacement 10) Propane (C3H8) is burned in the presence of air C3H8 (g) + 5O2 (g) 3CO2 (g) + 4H2O (g) Combustion 11) Ammonium Nitrate is added to sodium chloride NH4NO3 (aq) + NaCl (aq) No reaction 12) Lithium Chloride is added to Zinc Phosphate LiCl (aq) + Zn3(PO4)2(s) No reaction 13) Zinc is added to lithium chloride Zn (s) + LiCl(aq) No reaction 14) Iron is added to a solution of silver nitrate Fe (s) + 3AgNO3(aq) 3Ag(s) + Fe(NO3)3 Fe (s) + 2AgNO3(aq) 2Ag(s) + Fe(NO3)2 Single Replacement 15) A solution of copper II sulfate is added to an iron nail 3CuSO4 (aq) + 2Fe (s) Fe2(SO4)3 (aq) + 3Cu(s) CuSO4 (aq) + Fe (s) FeSO4 (aq) + Cu Single Replacement 16) Octane (C8H18) is burned in air C8H18(g) + 12.5O2(g) 8CO2(g) + 9H2O(g) 2C8H18(g) + 25O2(g) 16CO2(g) + 18H2O(g) combustion 17) A solution of Tin IV sulfate is added to a solution of ammonium hydroxide Sn(SO4)2(aq) + 4NH4OH(aq) Sn(OH)4(s) + 2(NH4)2SO4(aq) double replacement Or: No Reaction: Really a reaction will occur 18) Sodium hydroxide is added to hydrochloric acid NaOH(aq) + HCl(aq) H2O(l) + NaCl(aq) double replacement - 29 - Name ___________ 19) Calcium hydroxide is added to sulfuric acid Ca(OH)2 (s) + H2SO4 (aq) CaSO4 (s) + 2H2O(l) double replacement 20) Nickel is added to hydrochloric acid Ni(s) + 2HCl(aq) NiCl2(aq) + H2 (g) 2Ni(s) + 6HCl(aq) 2NiCl3(aq) + 3H2 (g) Single Replacement 21) Strontium is added to water Sr(s) + 2HOH(l) Sr(OH)2(s) + H2(g) Single replacement 22) Hydrochloric acid is added to copper metal HCl(aq) + Cu No reaction 23) Solid bismuth is added to a solution of barium hydroxide. Bi(s) + Ba(OH)2(s) No reaction 24) A solution of potassium iodide is added to liquid bromine. 2KI(aq) + Br2(l) 2KBr(aq) + I2 (s) single replacement 25) Methanol (CH3OH) is burned in air 2CH3OH(g) + 3O2(g) 2CO2(g) + 4H2O(g) combustion 26) Solid gold is added to hydrochloric acid Au(s) + HCl(aq) no reaction - 30 - Name ___________ Reaction Type Worksheet Balance and then identify each of the following reactions as: combustion, synthesis, decomposition, Single Displacement, Double Displacement. 1. Na + Cl2 NaCl 2. AgNO3 + NaCl AgCl + NaNO3 Type: ______________ 3. NH4CO3 (NH4)2O 3. CuSO4 5. Na3PO4 + 6. AgNO3 + + CO2 Li2SO4 + Li 4. C2H6 + O2 Type: ______________ CO2 Type: ______________ + Cu Type: ______________ + H2O Type: ______________ CuCl2 Cu3(PO4)2 + NaCl Type: ______________ Zn Zn(NO3)2 + Ag 7. CH3OH + O2 CO2 Type: ______________ + H2O Type: ______________ 8. CaO + CO2 CaCO3 Type: ______________ 9. Pb(NO3)2 + Na2CrO4 NaNO3 + PbCrO4 Type: ______________ 10. KClO3 KCl + O2 Type: ______________ 11. Magnesium + Iron III Chloride Magnesium Chloride + Iron 12. Nickel II Iodide + Silver I Nitrate Silver I Iodide + Nickel II Nitrate 13. Sodium carbonate decomposes into sodium oxide and carbon dioxide 14. Butane (C4H10) reacts with oxygen to form carbon dioxide and water 15. Magnesium oxide reacts with carbon dioxide to make magnesium carbonate - 31 - Name ___________ 16. Potassium Phosphate + Chromium III Chloride Potassium Chloride + Chromium III Phosphate - 32 -