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

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

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

Which charge distribution is not accurate? A.    B.    C.    D.   

Which pure substance will have hydrogen bonding as one of its intermolecular forces? A.     B.     C.   D. All compounds are able to form Hydrogen bonds

What is the molecular shape of Boron Trifluoride, BF3, and the hybridization of its central atom respectively? A. Trigonal bipyramidal, sp3d B. Trigonal pyramidal, sp3 C. Tetrahedral, sp3 D. Trigonal planar, sp2     

What mass of NO is produced when 0.500 moles of NH3 reacts with 0.500 moles of O2?                                                   4 NH3  + 5 O2  →  4 NO  +  6 H2O Molar Masses:NO: 30.01 g/molNH3: 17.04 g/molO2: 32.00 g/mol   A. 15.01 g NO B. 12.00 g NO C. 60.02 g NO D. 3.00 g NO

What is the molecular geometry around the indicated nitrogen atom?      A. Trigonal pyramidal B. Tetrahedral C. Linear D. Bent

What are the approximate bond angles around the indicated carbon?    A. 90

Which set represents a Chromium, Cr, species?   A. 52 protons, 49 electrons, 24 neutrons B. 21 protons, 18 electrons, 24 neutrons C. 24 protons, 21 electrons, 28 neutrons D. 10 protons, 10 electrons, 11 neutrons