Lec 12 chem 6c

Lec 12 chem 6c - High: 100 x3 60 50 40 30 20 10 0 100 95 90...

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0 10 20 30 40 50 60 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 EII Histogram Class Average: 73.6 High: 100 x3 Low: 24
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0 20 40 60 80 100 120 140 A B C D F Exam II Grade Distribution
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Preview Coordination Chemistry: Complex Complex Ion Ligands Coordination Number Coordination Compound Naming Compounds Each element of the first row of the d block
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Because there are too many d block metals to cover all of them, we will just cover a few properties from each element in the first row
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Scandium Rare Exists mainly in the + 3 oxidation state Examples: ScCl 3 , Sc 2 O 3 , and Sc 2 (SO 4 ) 3 Most compounds are colorless and paramagnetic Not widely used because it is so rare
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Titanium 0.6% by mass of the Earth’s crust Very strong and light weight Used in jet engines (5000 kg for each Boeing 747 engine) Titanium(IV) oxide is used as a white pigment for paint, paper, plastic, cosmetics, linoleum… Typically + 4 oxidation state
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Vanadium 0.02% by mass of the Earth’s crust Typically forms the + 5 oxidation state 80% is used in the steel industry to form an alloy of vanadium steel which is very strong (V 2 O 5 ) Similar to titanium
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Chromium Relatively rare Commonly forms + 2, + 4 and + 6 oxidation states Forms a thin, clear oxide which gives it shine and protects iron in steel Its oxide (VI oxidation state: CrO 3 ) can remove organic material because of a high oxidizing ability
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Manganese Relatively abundant (0.1% by mass of the Earth’s crust)
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Lec 12 chem 6c - High: 100 x3 60 50 40 30 20 10 0 100 95 90...

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