Which of the molecules are polar? CH,F CH, NH3 BeCl, HF H,O

Draw the molecular orbitals that form when two 2Py atomic orbitals overlap to form bonding and antibonding molecular orbitals. Show the relative signs of the orbital lobes.

Sigma bonds can form between different types of orbitals. The main criterion for sigma bond formation is that the two bonded atoms have valence orbitals with lobes that point directly at each other along the line between the two nuclei. The images below show the shapes of two orbitals on adjacent atoms. Choose all of the combinations that will lead to formation of a sigma bond. (Select all that apply.) None of these P 0,2.,2

What is the dipole moment of CH4 and CCl4? What is the dipole moment of CH3OCH3 and CH3NH2? Which has a higher dipole moment, cis-CHCl=CHCl or trans-CHF=CHF, is trans usually smaller?

Which of the following compounds is polar? Group of answer choices BCl3 IF5 PF5 CF4

According to valance bond theory, select which orbitals overlap to form a bond in the following molecule? HI 5s 5f 2s 5d 5p 3p 1s 4p 4s 3d 3s 2p 4d 4f

How many of the following molecules or ions are linear? NH3 OF2 HCN CO₂ NO₂ 0 0 1 O 2 3 4

What are the angles a and b in the actual molecule of which this is a Lewis structure? H H H C H a a = C b = ⁰ C H Note for advanced students: give the ideal angles, and don't worry about small differences from the ideal that might be caused by the fact that different electron groups may have slightly different sizes. H X

Which of the molecules are linear? BeCl₂ SF₂ □NO₂ XeF2