Homework Answers
Oxidation-reduction reaction: Herein oxidation number of element changes
Single replacement reaction: An element in reactant replaces another element from the second reactant (compound)
Double replacement reaction: Two compounds reacts to form two new products, where the cation and anion of reactants are exchanged.
Combination reaction: Two or more reactants combine to form a new product
Decomposition reaction: A reactant decompose to form two or more products.
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use e.) to answer #4
1. Classify each of the following reactions as OR (oxidation-reduction), SR...
Shown below are the 4 reactions involved in the Cu cycle listed in random o Cu3(PO4)2...
Shown below are the 4 reactions involved in the Cu cycle listed in random o Cu3(PO4)2 (s) + HCl (aq) → CuCl2 (aq) + H3PO4 (aq) CuCl2 (aq) + Mg(s) → MgCl2 (aq) + Cu (s) Cu (s) + 4 HNO3 (aq) → Cu(NO3)2 (aq) + 2 NO2 (8) + 2 H20 (1) Cu(NO3)2 (aq) + Na3PO4 (aq) → Cu3(PO4)2 (s) + NaNO3 (aq) A. Reaction B. Moles copper compound reactant .C. Moles reagent D. Amount of reagent E. Yield...
1. Balance the three copper reactions: + H20 (1) Cu(NO3)2 (aq) + NO2(g) i) Cu (s)...
1. Balance the three copper reactions: + H20 (1) Cu(NO3)2 (aq) + NO2(g) i) Cu (s) + HNO3 (aq) ii) Cu(NO3)2 (aq) + NaOH(aq) Cu(OH)2 (s) + NaNO3(aq) (aq) - iii) Cu(OH)2 (S) Cuo(s) + H2O (1) 2. In reaction (i), suppose you add 4.0 mL of 6 M nitric acid to a sphere of copper metal that weighs 0.65 grams. Which reactant is the limiting reagent? (Show your work)
1. Balance the three copper reactions: +H20 (1) +NO2 (g) Cu(NO3)2 (aq) i) Cu (s) HNO3...
1. Balance the three copper reactions: +H20 (1) +NO2 (g) Cu(NO3)2 (aq) i) Cu (s) HNO3 (aq) NANO3 (aq) NaOH (aq) Cu(OH)2 (s) + ii) Cu(NOs)2 (aq) + H2O (1I) CuO (s) iii) Cu(OH)2 (s) 2. In reaction (i), suppose you add 4.0 mL of 6M nitric acid to a sphere of copper metal that weighs 0.65 grams. Which reactant is the limiting reagent? (Show your work)
Write the five equations (balanced and including states). Label them step 1 through 5. HINT gor the step 1 reaction: ge...
Write the five equations (balanced and including states). Label
them step 1 through 5. HINT gor the step 1 reaction: get rid of O2
and 2 moles of NO2 is made for every 4 moles of HNO3.
Unbalanced reactions for each step: Step 1: HNO3(aq) + Cu(s) + O2 (g) → Cu(NO3)2(aq) + H2O(l) + NO2(g) Step 2: Cu(NO3)2(aq) + NaOH(aq) → Cu(OH)2(s) + NaNO3(aq) Step 3: Cu(OH)2(s) → CuO(s) + H2O(1) Step 4: CuO(s) + H2SO4(aq) → CuSO4(aq) +...
there are reactions from 1 to 5. Q: what is %yield of Cu?, and % error?...
there are reactions from 1 to 5. Q: what is %yield of Cu?, and % error? -reaction 1: 0.2134g of Cu, 2ml 6Mol HNO3 -reaction 5:0.1646g of Cu (solid) left. Balanced Equation reaction.1 Cu (s) + 4HNO3(aq) → Cu(NO3)2 (aq) + 2NO2 (g) + 2H2O (l) reaction 2: Cu(NO3)2 (aq) + 2NaOH (aq) → Cu(OH)2 (s) + 2NaNO3(aq) reaction 3: Cu(OH)2 (s) → CuO (s) + H2O (l) reaction 4: CuO (s) + H2SO4 (aq) → CuSO4 (aq) + H2O(l)...
1. Determine if each of the following reactions is a redox reaction, or is not a...
1. Determine if each of the following reactions is a redox reaction, or is not a redox reaction. a. C4H8 (g) + O2 + H20 (g) + CO2 (g) b. HCl (aq) + NaOH (aq) → H20 (1) + NaCl (aq) c. Fe2O3 + H2 → Fe + H2O d. Cu (s) + HNO3 (aq) → Cu(NO3)2 (aq) + NO2 (g) + H20 (1) e. CzHe(g) + 5 O2 (g) → 3 CO2 (g) + 4 H20 (g)
Use scratch paper if necessary, and copy your completed calculations to this sheet. Shown below are the 4 reactions...
Use scratch paper if necessary, and copy your completed calculations to this sheet. Shown below are the 4 reactions involved in the Cu cycle listed in random order Cus(PO4)2 (s)+HCI (aq)CuCl2 (aq) + HsPOs (aq) CuCl2 (aq)+ Mg (s) MgCl2 (aq)+ Cu (s) Cu (s)+4 HNO, (aq) Cu(NOs)2 (aq) +2 NO2 (8) + 2 H2O () Cu(NO) (aq)+ Na POs (aq)Cus(PO)2 (s) + NaNO, (aq) Place them in the proper order such that the first reaction starts with elemental copper...
Balance the following reactions and then classify the reactions as combination, decomposition (D), single replacement (S...
Balance the following reactions and then classify the reactions as combination, decomposition (D), single replacement (SR), double replacement (DR), or neither. a) CaBr2(aq) + K3PO4(aq)-->Ca3(PO4 )2(s) + KBr(aq) b) Li(s) + O2(g)--> Li2O(s) c) CH4(g) + O2(g)--->CO2(g) + H2O(g) d) AgBr(s)-->Ag(s) + Br2 (l) e) Na2CO3(aq) + HNO3(aq)---> CO2(g) + H2O(g) + NaNO3(aq)
What type of reaction is occurring in each step? Give a brief description for your choice....
What type of reaction is occurring in each step? Give a brief
description for your choice. Provide a complete balanced reaction
equations for the two redox reactions. Indicate which species is
being oxidize and which is being reduced in each case.
PART A: Cu (s) + 2 NO3- (aq) + 4 H+ (aq) + 4 H20 (1) → [Cu(H20)6]2+ (aq) + 2 NO2(g) (1) PART B: [Cu(H20)6]2+ (aq) + 2 H20 - (aq) + Cu(OH)2 (5) + 6 H20 (1)...
REACTION OF COPPER AND ITS COMPOUNDS PRE-LABORATORY QUESTIONS The following preparatory questions should be answered before...
REACTION OF COPPER AND ITS COMPOUNDS PRE-LABORATORY QUESTIONS The following preparatory questions should be answered before coming to lab. They are intended to introduce you to several ideas that are important to aspects of the experiment. You must turn in your work to your instructor before you will be allowed to begin the experiment. 1. Balance the three copper reactions: Cu(NO3)2 (aq) + NO2(g) + H2O (1) i) Cu (s) + HNO3(aq) ii) Cu(NO3)2 (aq) + NaOH(aq) Cu(OH)2 (s) +...
Shown below are the 4 reactions involved in the Cu cycle listed in random o Cu3(PO4)2 (s) + HCl (aq) → CuCl2 (aq) + H3PO4 (aq) CuCl2 (aq) + Mg(s) → MgCl2 (aq) + Cu (s) Cu (s) + 4 HNO3 (aq) → Cu(NO3)2 (aq) + 2 NO2 (8) + 2 H20 (1) Cu(NO3)2 (aq) + Na3PO4 (aq) → Cu3(PO4)2 (s) + NaNO3 (aq) A. Reaction B. Moles copper compound reactant .C. Moles reagent D. Amount of reagent E. Yield...
1. Balance the three copper reactions: + H20 (1) Cu(NO3)2 (aq) + NO2(g) i) Cu (s) + HNO3 (aq) ii) Cu(NO3)2 (aq) + NaOH(aq) Cu(OH)2 (s) + NaNO3(aq) (aq) - iii) Cu(OH)2 (S) Cuo(s) + H2O (1) 2. In reaction (i), suppose you add 4.0 mL of 6 M nitric acid to a sphere of copper metal that weighs 0.65 grams. Which reactant is the limiting reagent? (Show your work)
1. Balance the three copper reactions: +H20 (1) +NO2 (g) Cu(NO3)2 (aq) i) Cu (s) HNO3 (aq) NANO3 (aq) NaOH (aq) Cu(OH)2 (s) + ii) Cu(NOs)2 (aq) + H2O (1I) CuO (s) iii) Cu(OH)2 (s) 2. In reaction (i), suppose you add 4.0 mL of 6M nitric acid to a sphere of copper metal that weighs 0.65 grams. Which reactant is the limiting reagent? (Show your work)
Write the five equations (balanced and including states). Label
them step 1 through 5. HINT gor the step 1 reaction: get rid of O2
and 2 moles of NO2 is made for every 4 moles of HNO3.
Unbalanced reactions for each step: Step 1: HNO3(aq) + Cu(s) + O2 (g) → Cu(NO3)2(aq) + H2O(l) + NO2(g) Step 2: Cu(NO3)2(aq) + NaOH(aq) → Cu(OH)2(s) + NaNO3(aq) Step 3: Cu(OH)2(s) → CuO(s) + H2O(1) Step 4: CuO(s) + H2SO4(aq) → CuSO4(aq) +...
1. Determine if each of the following reactions is a redox reaction, or is not a redox reaction. a. C4H8 (g) + O2 + H20 (g) + CO2 (g) b. HCl (aq) + NaOH (aq) → H20 (1) + NaCl (aq) c. Fe2O3 + H2 → Fe + H2O d. Cu (s) + HNO3 (aq) → Cu(NO3)2 (aq) + NO2 (g) + H20 (1) e. CzHe(g) + 5 O2 (g) → 3 CO2 (g) + 4 H20 (g)
Use scratch paper if necessary, and copy your completed calculations to this sheet. Shown below are the 4 reactions involved in the Cu cycle listed in random order Cus(PO4)2 (s)+HCI (aq)CuCl2 (aq) + HsPOs (aq) CuCl2 (aq)+ Mg (s) MgCl2 (aq)+ Cu (s) Cu (s)+4 HNO, (aq) Cu(NOs)2 (aq) +2 NO2 (8) + 2 H2O () Cu(NO) (aq)+ Na POs (aq)Cus(PO)2 (s) + NaNO, (aq) Place them in the proper order such that the first reaction starts with elemental copper...
What type of reaction is occurring in each step? Give a brief
description for your choice. Provide a complete balanced reaction
equations for the two redox reactions. Indicate which species is
being oxidize and which is being reduced in each case.
PART A: Cu (s) + 2 NO3- (aq) + 4 H+ (aq) + 4 H20 (1) → [Cu(H20)6]2+ (aq) + 2 NO2(g) (1) PART B: [Cu(H20)6]2+ (aq) + 2 H20 - (aq) + Cu(OH)2 (5) + 6 H20 (1)...
REACTION OF COPPER AND ITS COMPOUNDS PRE-LABORATORY QUESTIONS The following preparatory questions should be answered before coming to lab. They are intended to introduce you to several ideas that are important to aspects of the experiment. You must turn in your work to your instructor before you will be allowed to begin the experiment. 1. Balance the three copper reactions: Cu(NO3)2 (aq) + NO2(g) + H2O (1) i) Cu (s) + HNO3(aq) ii) Cu(NO3)2 (aq) + NaOH(aq) Cu(OH)2 (s) +...
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