Answers edited by Truong-Son N.

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• Question #e09dc
  
• Question #655b9
  
• What is the density of carbon dioxide at STP?
  
• How are more complex red-ox reactions balanced? The kind of reactions which have 3 or more reactions and multiple products?Also what do we do when more that one species is undergoing oxidation/reduction?
  
• Which one of the following equilibrium reactions corresponds to the β2 constant for the complexation reaction described above? Part a) Ag+(aq) + 2Cn^-1(aq)
  
• Use the following bond enthalpies to calculate the heat of reaction?
  
• What is the difference in energy between the lowest energy state of the hydrogen atom, and the next higher energy level (i.e. the difference in energy between the 2 lowest energy states)?
  
• How to determine the heat evolved or consumed by the reaction of 1.0 g SO2(g) with excess oxygen, with results from a Hess' Law Equation?
  
• Circle all of the allowed sets of quantum numbers for an electron in a hydrogen atom?
  
• MO diagram of #"B"_2"H"_6#?
  
• Does entropy increase or decrease during transformation of egg into chicken?
  
• How do you start from the line structure, then determine the hybridization in order to figure out the structure with explicit atoms, for 1,3,4-trimethyl-1-pentene? What is the molecular formula?
  
• Why does ammonia have 4 shells that are sp3 hybridized, rather than having the s-shell for the non-bonding electron pair and the remaining 3 p-shells used for the covalent bonding with the hydrogen atoms?
  
• Calculating the heat of the reaction?
  
• Is the Diels Alder reaction reversible?
  
• What is the action of hydrogen gas on cyanogen?
  
• Assuming the volume is unchanged in a 0.5 M acetic acid/sodium acetate buffer at a starting pH of 4.76, if 1 mL of 0.1 M HCl is added, what does the pH become?
  
• Use the following data to calculate the energy required to convert 10.0 g of liquid water at 100.0C to steam at 115.0C under a constant 1 atm pressure.?
  
• Is milk a homogeneous or heterogeneous mixture?
  
• Explain London dispersion forces with an analogy?
  
• How do you convert #"255 mm Hg"# to #"atm"#? What about #"620 torr"# to #"PSI"#?
  
• Is it always true that an acid or base reacts with metals to give hydrogen gas?
  
• From the Heisenberg uncertainty principle, how do you calculate Δx for an electron with Δv = 0.300 m/s?
  
• What is a more substituted carbon from a less substituted carbon? What does substituted mean?
  
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