Answers edited by Truong-Son N.

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• What is mathematics?
  
• What does the atomic orbital diagram of carbon look like before #sp^3# hybridization?
  
• Question #5862e
  
• What is the average kinetic energy of a gas in a closed system at #"380 K"#, if the universal gas constant is #R = "8.314472 J/K"cdot"mol"#?
  
• Explain why spontaneity depends on temperature?
  
• Which of the following sentences requires a question mark?: The doorbell just rang Do you think anyone will answer the door
  
• Why do atomic spectra appear as lines?
  
• How many covalent bonds does nitrogen form in electrically neutral compounds?
  
• What is the conjugate acid of HPO2^2-?
  
• How many geometric isomers are there for the following compound? #[Mn(CO)_2Cl_2Br_2]^+#?
  
• Help with these reaction questions???
  
• Is the following sentence missing commas? If so, where?: The robots are still functioning.
  
• What is the order of decreasing reactivity toward electrophilic aromatic substitution for compounds: toluene, benzene, fluorobenzene, nitrobenzene, and phenol?
  
• If two people are pulling on the same rope at #"10 N"# of force, what is the tension on the rope?
  
• Write a short note on oxidation of alcohols. What are the different reactions involved, with suitable examples?
  
• What is the empirical formula of a compound that has a carbon-to-hydrogen ratio of 2 to 6?
  
• How will you convert methane to the following: ?
  
• Can tyrosine form dianionic form since it has acidic carboxyl group and also hydroxyl group at the phenyl group?
  
• What is a dextrorotatory compound?
  
• What type of isomer is Maleic Acid?
  
• What is the electron configuration of chromium?
  
• Which molecules will undergo aromatic bromination (#"Br"_2, "FeBr"_3#) the fastest? Why?
  
• How would you balance a reaction with a polyatomic ion only on one side?
  
• Which of the following has the smallest bond order for #"CO"#? #["Mn"("CO")_6]^(+)#, #"Cr"("CO")_6#, #["Ti"("CO")_6]^(2-)#, #["V"("CO")_6]^(-)#
  
• Why is the Diels-Alder reaction classified as a 4+2 cycloaddition?
  
• If an atom has 9 protons and 10 neutrons, what is its atomic number?
  
• Explain what quantum tunnelling is?
  
• A superhero launches himself from the top of a building with a velocity of 7.3m/s at an angle of 25 above the horizontal. If the building is 17 m high, how far will he travel horizontally before reaching the ground? What is his final velocity?
  
• How are arenediazonium salts formed when it comes to benzene reactions? What kinds of reactions can it undergo?
  
• How do I balance these reactions? Also, how can I write the net ionic reaction for the second one?
  
• How would you define the concept of equilibrium in terms of free energy and entropy?
  
• Write the ground-state electron configurations of the following transition metals: #"V"^(5+)#, #"Au"^(3+)#, and #"Fe"^(2+)#?
  
• Did I predict these reaction products correctly?? Help!
  
• For the reaction #"N"_2"O"_3(g) -> "NO"(g) + "NO"_2(g)#, given the following data, calculate the rate constant?
  
• In a Diels-Alder Reaction, 3-sulfolene produces a 1,3-butadiene and a gas. What is the gas that is produced?
  
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