How many unpaired electrons are in the lowest-energy state of Mn? A. 5 B. 3 C. 1 D. 0     

What is the formula for Iron(III) Chloride? A. Fe3Cl B. FeCl2 C. FeCl3 D. FeCl       

The experimental data from the reaction A

Which of the following compounds has the highest solubility in pure water?                        A. CaSO4 (Ksp = 7.1 x 10–5) B. BaSO4 (Ksp = 1.5 x 10–9) C. AgBr (Ksp = 5.0 x 10–13) D. CoS (Ksp = 5.0 x 10–22)   

Which set of quantum numbers is not allowed?   A. n = 2, l = 0, ml = -1, ms = +1/2 B. n = 3, l = 2, ml = 0, ms = +1/2 C. n = 2, l = 2, ml = -2, ms = +1/2 D. n = 1, l = 0, ml = 0, ms = -1/2

Which isotope consists of the least total number of subatomic particles? A.    B.    C.    D.        

The plot below shows best-fit lines for the average kinetic energy of electrons ejected from the surface of two metal samples as a function of the frequency of the incident light.  The slope values of these best-fit lines provide an estimate of:   A. Planck’s constant, h B. The work function, W, of the metal C. The Wavelength of the ejected electron D. The speed of light, c     

Which reaction will most likely have appreciable concentrations of all species present in the equilibrium mixture? A.                                      

Which processes have a positive entropy change? I.   Mg (s)  +  Cl2 (g)  

What mass of Fe will be produced from the reaction of 20.0 g Fe2O3 with excess CO?                                 Fe2O3 (s)  +  3 CO (g)