Which of the atoms must be coplanar with the pi bond in the structure below? U 1 2 3 05 83 4 5

Give the electron geometry (eg), molecular geometry (mg), and hybridization for Cl 3. eg = tetrahedral; mg = trigonal pyramidal; sp3 eg = trigonal planar; mg = trigonal planar; sp2 eg = octahedral; mg = tetrahedral, sp3 eg = tetrahedral; mg = linear; sp3 O eg trigonal pyramidal; mg = linear; sp3

How many electron groups does the central atom of CH2O have according to VSEPR theory?

Specify the correct answer. 12

Which compound does not contain ionic bonds? a) NaNO3 b) Al₂O3 c) NiS2 d) HCI Which of the following molecules would be best described as polar? SiCl4 NH3 CO₂ BeCl2

Iodine is  an essential trace element in the human diet ( in most places, table salt comes with iodine as additive). Iodine deficiency causes goiter and thyroid problems.  Is  NaI an ionic or a covalent compound  Give the steric numbers for the iodine atom and identify the geometries of the following ions containing iodine and oxygen IO3- IO65- IO4- Write the electronic configuration of the molecular ion I2+, what is the bond order?

What is the resonance form that describes the distribution of electrons in SeO2 ?

8. Draw the best Lewis structures of (a) AlF3 and (b) XeF4:

Which of the following statements concerning the N₂O molecule is/are true? The atoms are bonded in the order NNO. You may select more than one, or none, of the responses. The central N atom is sp² hybridized. The structure of N2O is best represented as a hybrid of three equivalent resonance structures, There are two σ and two bonds. The N2O molecule is linear. The central N atom has a formal charge of +1. The N-N-O angle is 60°, The two N atoms have the same oxidation state.

Give the ground state electron configuration for O 2⁻.     1s22s22p6     1s22s22p4     1s22s22p3     1s22s22p5     1s22s22p2