At 2600 K, ΔG° = 775 kJ for the vaporization of boron carbide:                                                        B4C(s) ⇌ 4 B(g) + C(s)  Find ΔG and determine if the process is spontaneous if the reaction vessel contains 4.00 mol B4C(s), 0.400 mol of C(s), and B(g) at a partial pressure of 1.0 × 10-5 atm. 

Determine the nuclear stability of the 50Mn isotope. If it is radioactive, choose the most likely mode of decay.

Consider the 4– ion. Determine which responses are true statements. I. The oxidation number of Co is –2.II. The coordination number of cobalt is 6.III. It is paramagnetic.IV. It is a low-spin complex.

Use the tabulated half-cell reduction potentials to calculate the equilibrium constant, K, for the following balanced redox reaction at 25°C.                                             2 Al(s) + 3 Mg2+(aq) → 2 Al3+(aq) + 3 Mg(s)

A solution containing CaCl2 is mixed with a solution of Li2C2O4 to form a solution that is 2.1 × 10-5 M in calcium ion and 4.75 × 10-5 M in oxalate ion.  What will happen once these solutions are mixed?  Ksp (CaC2O4) = 2.3 × 10-9

When standing from a sitting position, list two compensations and explain what he is compensating for.  Your answer should include the phase (according to Schenkman) in which you see the compensation and a specific description of the compensation.  

Using PNF, describe 5 exercises that would improve ankle dorsiflexion muscle strength.   

Please explain the meaning of this imagine. 

Question 8 (18 pts). Give a curved arrow pushing mechanism for the following two reaction. 1) Add non-bonding electrons to the line-angle structures as required. 2) Indicate the Lewis acid/Lewis base (LA, LB) at each INTERMOLECULAR step as appropriate, and whether they are also Brønsted acids/bases (LA/BA, LB,BB) 3) YOU DO NOT HAVE TO DRAW RESONANCE CONTRIBUTORS for intermediates 4) Show where ALL protons come form and go to, no abbreviated +H+/-H+ notation

Adults with hypertension whose blood pressure is under control is a goal of which of the following?