Homework Answers
a) Ferrate and permanganate are Fe and Mn oxyanions which contain Fe in the +6 and Mn in +7 oxidation states. It should however be noted that an oxyanion of Mn in +6 state also exists called manganate.
b) Pyrite and Alabandite are sulphide minerals of Fe and Mn respectively. In both these minerals, Fe and Mn are present in the +2 oxidation state.
c) Pyrolusite is a mineral made of Mn dioxide, i.e. Mn in the +2 state. Fe has many oxide minerals, both in the +2 and the +3 state e.g. haematite and magnetite respectively.
d) Fe in humic substances is most commonly found in the +3 oxidation state, which is the most stable for Fe. Mn on the other hand can be found as both +2 and +4 depending on the environment. In oxygen deficient environments, Mn is found in +2 oxidation state.
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1) (16 points) Iron exists as +2, +3, and +6 oxidation number...
(1) Name the following complexes and determine the oxidation number of central metal atoms (9 points)...
(1) Name the following complexes and determine the oxidation number of central metal atoms (9 points) (a) [Ni(CN).] (b) (Co(Cl)] (c) [Mn(NH)] (2) Palladium (II) to form complexes with coordination number 4. A compound has the composition PdCI,.3NH,. (a) Write the formula for the compound that best shows the co-ordination structure. (b) When an aqueous solution of the compounds is treated with excess AgNO,(aq), how many moles of AgCl(s) are formed per mole of PdC1,.3NH, (2+2 points)
please help Lab 10- Redox Reaction 1. What is the oxidation number for the silver ion...
please help
Lab 10- Redox Reaction 1. What is the oxidation number for the silver ion in tarnish? - 2. What is the oxidation number for silver in sterling silver? What is the oxidation number of an elemental material?] 3. What is the oxidation number for aluminum in aluminum foil? [What is the oxidation number of an unreacted element?] 4. What is the formula for the cation formed when aluminum metal is oxidized? 5. Write the formula for aluminum sulfide.
Please answer the questions too. Thanks. 4. What is used for naming covalent compounds that is...
Please answer the questions too. Thanks.
4. What is used for naming covalent compounds that is not used for lonic compound naes Procedures: 1. Complete Table A "Electron Dot Structures" using the given examples 2. Complete Table B "Physical Properties of lonic Compounds using text book as the reference. 3. Complete Table C "Formulas of lonic Compounds." Determine the oxidation mumber or valence of each ion, then determine the chemical formula so that the compounds have a balance, zero net...
1. 2. 3. Balancing Oxidation-Reduction Reactions 1. Assign oxidation numbers. 2. Separate into oxidation and reduction...
1. 2. 3.
Balancing Oxidation-Reduction Reactions 1. Assign oxidation numbers. 2. Separate into oxidation and reduction half reactions. 3. Balance each half reaction using the following steps: a. Balance all elements except oxygen or hydrogen. b. Balance oxygen by adding H20. c. Balance hydrogen by adding H*. d. Balance charge by adding electrons: Electrons go on the RIGHT (product side) for OXIDATION reactions. Electrons go on the LEFT (reactant side) for REDUCTION reactions. e. In BASIC solution, do this additional...
Sudent Name: EXP #6: PRE-LAB EXERCISE 1. Find the charge (also called oxidation number) of the...
Sudent Name: EXP #6: PRE-LAB EXERCISE 1. Find the charge (also called oxidation number) of the metal atom in each of the following nstructor Name: polyatomie ions or compounds (hint! Oxygen is always-2). a) dichromate ion, CrO b) chromate ion, Cro c) arsenate ion, AsO 2. Balance the following redox reactions. The second one is broken up into separate oxidation and reduction "half reactions in order to assist you (hinr See page I) Orxidation Reduction 3. In the question above,...
1. How many electrons appear in the Lewis symbol for an element whose electron configuration is...
1. How many electrons appear in the Lewis symbol for an element whose electron configuration is 1s'2s'2p? a. 2 b. d. 2. In which of the following ionic compounds are ions with a +2 charge present? a LiSe c Mg,Si d. SnO 3. The Roman numeral ." in the name iron(m) oxide indicates that: a. iron is present in the form of +3 ions b. there are three iron atoms per formula unit c. there are three oxygen atoms per...
oxidation question - please help me fill out all the blanks Question 3 6 pts When...
oxidation question - please help me fill out all the blanks
Question 3 6 pts When answering this question: • For the element being oxidized or reduced: use the standard abbreviation for elements (e.g. F for fluorine, Fe for iron), using the correct upper case or lower case letters. You are being asked for the element of an oxidized/reduced atom, not the name or formula for a molecule. Give oxidation numbers in the format such as "+1", "-2", "O" etc....
**PLEASE ANSWER ALL QUESTIONS AND EXPLAIN ** TUTORIAL 7. GROUP 16 ELEMENTS 1. What are the...
**PLEASE ANSWER ALL QUESTIONS AND EXPLAIN **
TUTORIAL 7. GROUP 16 ELEMENTS 1. What are the two commercial methods for the preparation of oxygen? 2. Give an example of an acidic oxide and a basic oxide. 3. Name the allotropes of oxygen and sulphur and discuss how they can he 4. Give uses of the following: SO2, Na2S20s and H2SO4. 5. Give equations for the steps in the contact process for the manufacture o 6. Write equations for the following:...
2/3/6 Find the oxidation number of: A. nitrogen in N2H, B. fluorine in F2 C. chromium...
2/3/6
Find the oxidation number of: A. nitrogen in N2H, B. fluorine in F2 C. chromium in Cro,2- Submit Answer Retry En po mero 9999 Find the oxidation number of: A. chlorine in C104 B. arsenic in HASO, C. nickel in Ni2+ Submit Answer Retr roup IO-NC + B 3H3AsO4 + 2Cr3++ 2 H20 2Cro12+10 H 3HASO2 + For the above redox reaction, assign oxidation numbers and use them to identify the element oxidized and the element reduced name of...
4 points 1. Write electron configuration of the following elements and ions: C. In, Se(2-). Ti...
4 points 1. Write electron configuration of the following elements and ions: C. In, Se(2-). Ti (4+). Your answer 2. What is oxidation number (give the definition) 2 points Your answer 3. Calculate the simplest formula of compound if it contains 58.72 % of C: 3 points 9.15% of H: 9.78% of N: 22.35 % of o by mass. Molar mass of compound is 143.09 g/mol your answer 4.4.52 g of the oxide of element X react with excess of...
(1) Name the following complexes and determine the oxidation number of central metal atoms (9 points) (a) [Ni(CN).] (b) (Co(Cl)] (c) [Mn(NH)] (2) Palladium (II) to form complexes with coordination number 4. A compound has the composition PdCI,.3NH,. (a) Write the formula for the compound that best shows the co-ordination structure. (b) When an aqueous solution of the compounds is treated with excess AgNO,(aq), how many moles of AgCl(s) are formed per mole of PdC1,.3NH, (2+2 points)
please help
Lab 10- Redox Reaction 1. What is the oxidation number for the silver ion in tarnish? - 2. What is the oxidation number for silver in sterling silver? What is the oxidation number of an elemental material?] 3. What is the oxidation number for aluminum in aluminum foil? [What is the oxidation number of an unreacted element?] 4. What is the formula for the cation formed when aluminum metal is oxidized? 5. Write the formula for aluminum sulfide.
Please answer the questions too. Thanks.
4. What is used for naming covalent compounds that is not used for lonic compound naes Procedures: 1. Complete Table A "Electron Dot Structures" using the given examples 2. Complete Table B "Physical Properties of lonic Compounds using text book as the reference. 3. Complete Table C "Formulas of lonic Compounds." Determine the oxidation mumber or valence of each ion, then determine the chemical formula so that the compounds have a balance, zero net...
1. 2. 3.
Balancing Oxidation-Reduction Reactions 1. Assign oxidation numbers. 2. Separate into oxidation and reduction half reactions. 3. Balance each half reaction using the following steps: a. Balance all elements except oxygen or hydrogen. b. Balance oxygen by adding H20. c. Balance hydrogen by adding H*. d. Balance charge by adding electrons: Electrons go on the RIGHT (product side) for OXIDATION reactions. Electrons go on the LEFT (reactant side) for REDUCTION reactions. e. In BASIC solution, do this additional...
Sudent Name: EXP #6: PRE-LAB EXERCISE 1. Find the charge (also called oxidation number) of the metal atom in each of the following nstructor Name: polyatomie ions or compounds (hint! Oxygen is always-2). a) dichromate ion, CrO b) chromate ion, Cro c) arsenate ion, AsO 2. Balance the following redox reactions. The second one is broken up into separate oxidation and reduction "half reactions in order to assist you (hinr See page I) Orxidation Reduction 3. In the question above,...
1. How many electrons appear in the Lewis symbol for an element whose electron configuration is 1s'2s'2p? a. 2 b. d. 2. In which of the following ionic compounds are ions with a +2 charge present? a LiSe c Mg,Si d. SnO 3. The Roman numeral ." in the name iron(m) oxide indicates that: a. iron is present in the form of +3 ions b. there are three iron atoms per formula unit c. there are three oxygen atoms per...
oxidation question - please help me fill out all the blanks
Question 3 6 pts When answering this question: • For the element being oxidized or reduced: use the standard abbreviation for elements (e.g. F for fluorine, Fe for iron), using the correct upper case or lower case letters. You are being asked for the element of an oxidized/reduced atom, not the name or formula for a molecule. Give oxidation numbers in the format such as "+1", "-2", "O" etc....
**PLEASE ANSWER ALL QUESTIONS AND EXPLAIN **
TUTORIAL 7. GROUP 16 ELEMENTS 1. What are the two commercial methods for the preparation of oxygen? 2. Give an example of an acidic oxide and a basic oxide. 3. Name the allotropes of oxygen and sulphur and discuss how they can he 4. Give uses of the following: SO2, Na2S20s and H2SO4. 5. Give equations for the steps in the contact process for the manufacture o 6. Write equations for the following:...
2/3/6
Find the oxidation number of: A. nitrogen in N2H, B. fluorine in F2 C. chromium in Cro,2- Submit Answer Retry En po mero 9999 Find the oxidation number of: A. chlorine in C104 B. arsenic in HASO, C. nickel in Ni2+ Submit Answer Retr roup IO-NC + B 3H3AsO4 + 2Cr3++ 2 H20 2Cro12+10 H 3HASO2 + For the above redox reaction, assign oxidation numbers and use them to identify the element oxidized and the element reduced name of...
4 points 1. Write electron configuration of the following elements and ions: C. In, Se(2-). Ti (4+). Your answer 2. What is oxidation number (give the definition) 2 points Your answer 3. Calculate the simplest formula of compound if it contains 58.72 % of C: 3 points 9.15% of H: 9.78% of N: 22.35 % of o by mass. Molar mass of compound is 143.09 g/mol your answer 4.4.52 g of the oxide of element X react with excess of...
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