1. in the decomposition of hydrogen peroxide, which substance is oxidized and which is reduced? 2....
1. in the decomposition of hydrogen peroxide, which substance is oxidized and which is reduced?
2. Gold metal is always at the bottom of the activity series. Explain why this means that gold is a good substance for dental fillings.
3. Use the internet or book sources to discover the function of iron in heme. Is the iron in ionic or atomic form, and if ionic, what is its charge (oxidation state)? Is it always in the same oxidation state in heme?
Please provide a clear explanations. Thank you.
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1. in the decomposition of hydrogen peroxide, which substance is
oxidized and which is reduced?
2....
Question 23 Extra Credit FREE RESPONSE QUESTIONS The decomposition of hydrogen peroxide. 1. Write a balanced...
Question 23 Extra Credit FREE RESPONSE QUESTIONS The decomposition of hydrogen peroxide. 1. Write a balanced chemical equation. 2. Oxidation states of atoms in reactants? 3. Oxidation states of atoms in products? 4. Substance oxidized? 5. Substance reduced? 6. Oxidizing agent? 7. Reducing agents? 8. Number of electron transfer?
When a substance is oxidized, it electrons and its oxidation number When a substance is reduced,...
When a substance is oxidized, it electrons and its oxidation number When a substance is reduced, it electrons and its oxidation number Determine the oxidation number of each clement in: HCIO_4 C-2O_4^2- In each of the following redox reactions, determine which element is oxidized and which is reduced. Cl_2 (aq) + 2 I (aq) rightarrow I_2 (aq) + 2 Cl' (aq) Fe_2O_3 (s) + 3 CO (g)rightarrow 2 Fe (s) + 3 CO_2 (g) Write balanced molecular and net ionic...
2. Reaction of hydrogen peroxide to form water and oxygen gas Observations: Reaction Type: Balanced Reaction:...
2. Reaction of hydrogen peroxide to form water and oxygen gas Observations: Reaction Type: Balanced Reaction: (including states) Oxidation States of atoms in reactants Oxidation states of atoms in products 0 H=_ 0 = Substance Oxidized? Substance Reduced? Oxidizing Agent? = Reducing Agent? Number of electrons transferred 3. Reaction of copper metal with aqueous silver nitrate Observations: Reaction Type: Balanced Reaction: (including states) Oxidation States of atoms in reactants Oxidation states of atoms in products Cu = Ag = Substance...
39. Hydrogen peroxide a. can be both oxidized and reduced b. is a better oxidizing agent...
39. Hydrogen peroxide a. can be both oxidized and reduced b. is a better oxidizing agent than a reducing agent c. will disproportionate in solution d. is used as a bleaching agent e. all of the above 40. Which of the following nitrogen compounds is paramagnetic? a. NO b. N c. NO, - d. NO e. NO 41. Which reddish-brown gas is a major factor in photochemical smog and acid rain? a. NO b. NO, c. SO, d. CO2 _G...
RODOX EXAMINATION An oxidation-reduction reaction involves the (1) sharing of electrons &n
RODOX EXAMINATION An oxidation-reduction reaction involves the (1) sharing of electrons (3) transfer of electrons (2) sharing of protons (4) transfer of protons In this reaction, CO→ 2 CO + O2 the oxidation number of carbon changes from: (1) 0 to +4 (3) +3 to 0 (2) +2 to +4 (4) +4 to +2 Which balanced equation represents a redox reaction? AgNO3 (aq) +NaCl (aq) →AgCl (s) +NaNO3 (aq) H2CO3 (aq)...
11. Which one of these elements is not a gas at room temperature? A. chlorine B....
11. Which one of these elements is not a gas at room temperature? A. chlorine B. fluorine C. nitrogen D. oxygen E. sulfur 22. Determine all of the ionic compounds from the compounds listed below. I. CaH2 II. H2S III. SiH4 A. I only B. II only C. I and II D. I and III E. II and III 32. Based on the following options, select the substance with hydrogen in the +1 oxidation state. A. KH B. CH4 C....
need help with the rest of the table EXPERIMENT 10 DETERMINATION OF THE ELECTROCHEMICAL SERIES PURPOSE...
need help with the rest of the table
EXPERIMENT 10 DETERMINATION OF THE ELECTROCHEMICAL SERIES PURPOSE To determine the standard cell potential values of several electrochemical coll INTRODUCTION The basis for an electrochemical cell is an oxidation reduction Corredor be divided into two half reactions reaction. This reaction can Oxidation half reaction Gloss of electrons) takes place at the anode, which is the positive electrode that the anions migrate to Chence the name anode) Reduction half reaction (gain of electrons)...
5. What was the purpose of the NaNO3 solution in this experiment? 6. Could a solution...
5. What was the purpose of the NaNO3 solution in this experiment? 6. Could a solution of NaCl be used instead of NaNO3? 7. What was the purpose of FeSO4 solution in this experiment? 8. Could a solution of FeCl, be used instead of FeSO4? 9. Could a solution of NaSO4 be used instead of FeSO4? 10. Calculate the standard cell potential for the spontaneous redox reaction between a Pb(s)/Pb(NO3)2(aq) half-cell and a Ag(s)/AgNO3(aq) half-cell. Which metal would be oxidized?...
18. Which statement about redox reactions is not comect? (a) During oxidation a substance loses electrons...
18. Which statement about redox reactions is not comect? (a) During oxidation a substance loses electrons (b) The oxidation number of an element is zero (c) Oxygen is required for addation (d) Oxidation cannot occur without reduction (e) none of the above 19.11.3 g of acetone. (CH3)2C0.is mibed with 20.7 g of oxygen gas (O) and combusted to form carbon dioxide gas and water vapor. How many grams of CO2 are formed in this process? (a) 25.7 g CO2 (c)...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
Question 23 Extra Credit FREE RESPONSE QUESTIONS The decomposition of hydrogen peroxide. 1. Write a balanced chemical equation. 2. Oxidation states of atoms in reactants? 3. Oxidation states of atoms in products? 4. Substance oxidized? 5. Substance reduced? 6. Oxidizing agent? 7. Reducing agents? 8. Number of electron transfer?
When a substance is oxidized, it electrons and its oxidation number When a substance is reduced, it electrons and its oxidation number Determine the oxidation number of each clement in: HCIO_4 C-2O_4^2- In each of the following redox reactions, determine which element is oxidized and which is reduced. Cl_2 (aq) + 2 I (aq) rightarrow I_2 (aq) + 2 Cl' (aq) Fe_2O_3 (s) + 3 CO (g)rightarrow 2 Fe (s) + 3 CO_2 (g) Write balanced molecular and net ionic...
2. Reaction of hydrogen peroxide to form water and oxygen gas Observations: Reaction Type: Balanced Reaction: (including states) Oxidation States of atoms in reactants Oxidation states of atoms in products 0 H=_ 0 = Substance Oxidized? Substance Reduced? Oxidizing Agent? = Reducing Agent? Number of electrons transferred 3. Reaction of copper metal with aqueous silver nitrate Observations: Reaction Type: Balanced Reaction: (including states) Oxidation States of atoms in reactants Oxidation states of atoms in products Cu = Ag = Substance...
39. Hydrogen peroxide a. can be both oxidized and reduced b. is a better oxidizing agent than a reducing agent c. will disproportionate in solution d. is used as a bleaching agent e. all of the above 40. Which of the following nitrogen compounds is paramagnetic? a. NO b. N c. NO, - d. NO e. NO 41. Which reddish-brown gas is a major factor in photochemical smog and acid rain? a. NO b. NO, c. SO, d. CO2 _G...
need help with the rest of the table
EXPERIMENT 10 DETERMINATION OF THE ELECTROCHEMICAL SERIES PURPOSE To determine the standard cell potential values of several electrochemical coll INTRODUCTION The basis for an electrochemical cell is an oxidation reduction Corredor be divided into two half reactions reaction. This reaction can Oxidation half reaction Gloss of electrons) takes place at the anode, which is the positive electrode that the anions migrate to Chence the name anode) Reduction half reaction (gain of electrons)...
5. What was the purpose of the NaNO3 solution in this experiment? 6. Could a solution of NaCl be used instead of NaNO3? 7. What was the purpose of FeSO4 solution in this experiment? 8. Could a solution of FeCl, be used instead of FeSO4? 9. Could a solution of NaSO4 be used instead of FeSO4? 10. Calculate the standard cell potential for the spontaneous redox reaction between a Pb(s)/Pb(NO3)2(aq) half-cell and a Ag(s)/AgNO3(aq) half-cell. Which metal would be oxidized?...
18. Which statement about redox reactions is not comect? (a) During oxidation a substance loses electrons (b) The oxidation number of an element is zero (c) Oxygen is required for addation (d) Oxidation cannot occur without reduction (e) none of the above 19.11.3 g of acetone. (CH3)2C0.is mibed with 20.7 g of oxygen gas (O) and combusted to form carbon dioxide gas and water vapor. How many grams of CO2 are formed in this process? (a) 25.7 g CO2 (c)...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
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