Domanda del libro di testo
What is a racemic mixture? Does it affect plane-polarized light? Explain.
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Ch.21 - Transition Elements and Coordination Chemistry
McMurry8th EditionChemistryISBN: 9781292336145
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TOC.tableOfContents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
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McMurry 8th EditionCh.21 - Transition Elements and Coordination ChemistryProblema 21.54
McMurry 8th EditionCh.21 - Transition Elements and Coordination ChemistryProblema 21.54Capitolo 21, Problema 21.54
What is the highest oxidation state for each of the elements from Sc to Zn?
Guida verificata passo dopo passo1
Identify the elements in the range from Scandium (Sc) to Zinc (Zn) on the periodic table. These elements are transition metals in the 3d block.
Recall that the oxidation state of an element is determined by the number of electrons it can lose, gain, or share when it forms chemical compounds.
For transition metals, the highest oxidation state is often equal to the total number of valence electrons, which includes both the (n-1)d and ns electrons.
Determine the electron configuration for each element from Sc to Zn. For example, Scandium (Sc) has the electron configuration [Ar] 3d¹ 4s².
Calculate the highest oxidation state for each element by considering the total number of electrons in the (n-1)d and ns orbitals. For instance, Scandium (Sc) can have a maximum oxidation state of +3, as it can lose all three valence electrons (3d¹ 4s²).
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Oxidation States
Oxidation states, or oxidation numbers, indicate the degree of oxidation of an atom in a compound. They are assigned based on a set of rules, reflecting the number of electrons an atom gains, loses, or shares when forming chemical bonds. Understanding oxidation states is crucial for predicting the behavior of elements in reactions, especially in redox processes.
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02:42
Oxidation Numbers
Transition Metals
Transition metals, located in the d-block of the periodic table, exhibit unique properties due to their ability to lose different numbers of electrons. This variability allows them to have multiple oxidation states, which is essential for their roles in catalysis and complex formation. Elements from Scandium (Sc) to Zinc (Zn) are all transition metals, each with distinct maximum oxidation states.
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03:12Transition Metals
Periodic Trends
Periodic trends refer to the predictable patterns observed in the properties of elements as you move across or down the periodic table. These trends include changes in electronegativity, atomic radius, and oxidation states. Recognizing these trends helps in understanding how the oxidation states of transition metals vary, particularly from Sc to Zn, where the highest oxidation states typically increase with atomic number.
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00:38Periodic Trends
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Domanda del libro di testo
What is the oxidation state of the metal in each of the complexes?
a. AgCl2–
b. [Cr(H2O)5Cl]2+
c. [Co(NCS)4]2–
d. [ZrF8]4–
e. [Fe(EDTA)(H2O)]–
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Domanda del libro di testo
The glycinate anion, gly-= NH2CH2CO2 -, bonds to metal ions through the N atom and one of the O atoms. Using to represent gly-, sketch the structures of the four stereoisomers of Co(gly)3.
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Domanda del libro di testo
What is the oxidation state of the metal in each of the complexes?
a. [Ni(CN)5]3–
b. Ni(CO)4
c. [Co(en)2(H2O)Br]2+
d. [Cu(H2O)2(C2O4)2]2–
e. Co(NH3)3(NO2)3
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Domanda del libro di testo
What hybrid orbitals are used by the metal ion and how many unpaired electrons are present the complex ion [VCl4]- with tetrahedral geometry?
(a) sp3; 2 unpaired electrons
(b) sp3; 3 unpaired electrons
(c) sp3d2; 3 unpaired electrons
(d) sp3d2; 4 unpaired electrons
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Domanda del libro di testo
Which of the following complexes can exist as enantiomers? Draw their structures.
(a) [Cr(en)3]3+
(b) cis-[Co(NH3)Cl]2+
(c) trans-[Co(en)2(NH3)Cl]2+
(d) [Pt(NH3)3Cl3]+
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