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Cindy had liposuction to remove adipose tissue years ago. However, she has since gained back nearly all the weight lost through the procedure. She does not understand why she gained weight since she learned that adipocytes lack the ability to divide in adults. Speculate on a reason why she gained weight.

Determine the equilibrium constant for the system N2O4   2NO2 at 25°C. Theconcentrations are shown here: [N2O4] = 2.48× 10–2M, [NO2] = 1.41 × 10–2M.

The balanced equation for the reaction of potassium perbromate with hydrogen peroxide in an acidic solution is given by: 2KMnO4(aq) + 3H2SO4(aq) + 5H2O2(aq) → 2MnSO4(aq) + 8H2O(l) + 5O2(g) + K2SO4(aq) At a particular instant in time, the value of –Δ[KMnO4]/Δt is 2.0 x 10–2 mol/L s. What is the value of Δ[MnSO4]/Δt in the same units?

Given the ∆Hf  (kJ/mol) information, CH4(g) = -75 Cl2(g) = 0 CCl4(g) = -135 HCl(g) = -92 calculate ∆Hrxn for CH4(g) + 4Cl2(g) → CCl4(g) + 4HCl(g)

Use the following information to determine the activation energy for the reaction shown below. 2NO –> N2 + O2 Temperature (K) Rate Constant (L/mol·s) 1400 0.143 1500 0.693

If a tree dies and the trunk remains undisturbed for 13,535 years, what percentage of original 14C/12C ratio is still present? (t1/2= 5730 years)

For a particular chemical reaction ΔH = 5.8 kJ and ΔS = –23 J/K. Under what temperature condition is the reaction spontaneous?

The reduction potentials for Au 3+ and Ni 2+ are as follows:           Au 3+ + 3e – → Au     E° = +1.50 V           Ni 2+ + 2e – → Ni     E° = –0.23 V Calculate ΔG° (at 25°C) for the reaction           2Au 3+ + 3Ni → 3Ni 2+ + 2Au

A 5.95-g sample of AgNO3 is reacted with BaCl2 according to the equation         2AgNO3(aq)+ BaCl2(aq) —> Ba(NO3)2(aq) + 2AgCl(s)to give 4.07 g of AgCl. What is the percent yield of AgCl?

Which type of impression tray is pictured below?