17 Results
Reaction Mechanisms   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Induction by Iron(II) of the Oxidation of Iodide by Dichromate   
(Movie/Animation, Audio/Visual (2))
Acidic aqueous solutions containing dichromate and iodide ions are mixed with no reaction. The addition of a solution of iron(II) ion induces the rapid formation of brown triiodide ion.
Blue Bottle, Red and Blue Bottle   
(Movie/Animation, Audio/Visual (2))
Color changes are caused by reactions of oxygen in the air with chemicals in a solution. The colors fade over time, but can be regenerated by shaking the flask containing the solution.
Kinetics : ElementRxnRateLaws (13 Variations)   
(Assessment Material (1))
Assume that the equation below represents an elementary reaction. Predict the rate expression (rate law) for this reaction.

CO(g) + Cl2(g) COCl2(g)

Kinetics : RxnMechanisms (14 Variations)   
(Assessment Material (1))
Experiments show that the reaction of nitrogen dioxide and carbon monoxide
NO2 + CO NO + CO2

has the following rate expression at high temperatures:

Rate=k[NO2][CO]

Is the following mechanism compatible with the experimental information?
(1) NO2 + CO O-N-O-C-O (slow)
(2) O-N-O-C-O NO + CO2 (fast)
Choose the best answer.

Kinetics : IntermediateInMech (15 Variations)   
(Assessment Material (1))
Suppose that for the reaction of nitrogen dioxide and carbon monoxide
NO2 + CO NO + CO2

the following mechanism has been proposed at high temperatures:
(1) NO2 + CO O-N-O-C-O (slow)
(2) O-N-O-C-O NO + CO2 (fast)
Check the box for each species that is an intermediate in this mechanism.

Kinetics : ElementaryRxnOrNot (9 Variations)   
(Assessment Material (1))
Which of the following reactions could be elementary and unimolecular reactions?
Kinetics : InterpretEnergyProfile (16 Variations)   
(Assessment Material (1))
Use the energy profile below to decide if the following statements are true or false.
Alcohols and Ethers (22 Variations)   
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A collection of 22 assessment questions about Alcohols and Ethers
Aromatic (26 Variations)   
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A collection of 26 assessment questions about Aromatic
Aldol Reactions (30 Variations)   
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A collection of 30 assessment questions about Aldol Reactions
Substitution and Elimination (6 Variations)   
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A collection of 6 assessment questions about Substitution and Elimination
Radicals (9 Variations)   
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A collection of 9 assessment questions about Radicals
Anhydrides (2 Variations)   
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A collection of 2 assessment questions about Anhydrides
Acetals (9 Variations)   
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A collection of 9 assessment questions about Acetals
ChemPaths 104 F Feb 25   
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Today in Chem 104: * Lecture: Problem-Solving Session * No assigned reading for today. * Homework #5 due by 11:55 pm Today! * Biomolecules Tutorial Enzymes (including Enzymes Quiz) is due Wed. Mar. 2, at 11:55 pm.
ChemPaths 104 W Feb 23   
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Today in Chem 104: * Lecture: Mechanisms of Reactions * Reading: Kotz, Ch. 15, Sec. 5-6 Moore, Ch. 13, Sec. 6-76 * Homework #5 due by 11:55 pm F Feb 25 * Excel Assignment due in first discussion section this week * Quiz 4 in second discussion section this week