Answers edited by Truong-Son N.

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• When do you use parentheses when naming transition metal complexes?
  
• When #"0.1 mols"# of an unknown hydrocarbon #"C"_x"H"_y# was combusted, it produced #"0.3 mols"# of #"CO"_2# and #"0.4 mols"# of #"H"_2"O"#. What is the molecular formula of this hydrocarbon?
  
• What is the hybridization in #"HCl"#?
  
• Question #79ec7
  
• For the Hydrogen atomic #2s# wave function given by #psi = 1/(2sqrt(2pi)) sqrt(1/a_0) (2 - r/a_0)e^(-r//2a_0)#, at what radial distance away from the nucleus can no electrons be found?
  
• What is the action of 4-methylphenylhydrazine on a carbonyl group, with reaction and example?
  
• Which word could be eliminated from the sentence: "Time, as a matter of fact, is up." for a stronger effect?
  
• Does ethanamine react with aqueous sodium hydroxide?
  
• What functional group is in ethyl butyrate?
  
• Why is the #SO_3# molecule an electrophile?
  
• What fraction of the orbitals in #"1 mol"# of #"Mg"# atoms in a metallic network are occupied at #"0 K"#?
  
• How many quantum numbers are needed to define the probability of finding the electron in a given region of space in the hydrogen atom?
  
• Question #8cdfb
  
• On average, how many #pi# bonds does #"O"_2^(+)# have?
  
• Affect v.s. effect, when would you use each of them?
  
• What is the hybridization on #CH_4#, #NH_3#, #O_2#, #N_2#, and #H_2O#?
  
• What are functional groups? Why is it logical and useful to classify organic compounds according to their functional groups?
  
• What is the orbital overlap diagram for #"NH"_3#?
  
• Question #f8f28
  
• Will lead (#Pb#) react with #HgSO_4#?
  
• I need to make a #"6 M"# solution of #"KI"# in #"50.00 mL"#. I tried to dump #"49.8 g"# of #"KI"# into #"50.00 mL"# of water in a volumetric flask, but I can't dissolve it. What can I do? Also, is it okay that the volume reading is above the mark??
  
• Does a lone pair count as a sigma bond?
  
• What is the pka range for a strong acid?
  
• Explain why solution volume expands when we have positive deviation?
  
• For which molecule is the external double bond shorter? 1-[(1E)-1-butenyl]-4-nitrobenzene or butenylbenzene ?
  
• For the overall reaction shown below with a fast equilibrium, why is the true rate law NOT #r(t) = k_2[A][B_2]#? Also, why is the overall reaction order #3//2# and not #3#?
  
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