Although nitrogen trifluoride (NF3) is a thermally stable compound, nitrogen triiodide (NI3) is known to be a highly explosive material. NI3 can be synthsized according to the equation BN(s) +3IF)BF, (9) +NI (s) a What is the enthalpy of formation for NI3 (s) given the enthalpy of reaction (-307 kJ) and the enthalpies of formation for BN(s) (-254 kJ mol). IF(g) (-96 kJ/mol), and BF3() (1136 kJ/mol)? kJ/mol b. It is reported that when the synthesis of NI is conducted using 4 moles of IF for every 1 mole of BN, one of the by-products isolated is [IF2l [BFA]T. What are the molecular geometries of the species in this by-product? The molecular geometry of IF2 is The molecular geometry of BF4 is What are the hybridizations of the central atoms in each species in the by-product? The hybridization of IF2 is The hybridization of BF4 is