The C—O—C bond angle in dimethyl ether is closest to     a)  109o.   b)  90o.   c)  120o.   d)  180o

Which atomic orbitals overlap to form the bonds in ClF?

A compound of chlorine and fluorine. ClFn, reacts at about 75C with uranium metal to produce uranium hexafluoride, UF6, and chlorine monofluoridc. ClF(g). A quantity of uranium produced 7.04 g UF6, and 343 mL ClF at 75C and 2.50 atm. What is the formula (n) of the compound? Predict the molecular geometry using the VSEPR model.

The organic compound below is a member of a class known as oximes. (a) What are the hybridizations of the two C atoms and of the N atom? (b) What is the approximate CNO angle?

Which of the following statements is/are true? Correct the false statements. a. The molecules SeS3. SeS2, PCl5, TeCl4, ICl3, and XeCl2 all exhibit at least one bond angle which is approximately 120. b. The bond angle in SO2 should be similar to the bond angle in CS2 or SCI2. c. Of the compounds CF4, KrF4, and SeF4, only SeF4 exhibits an overall dipole moment (is polar). d. Central atoms in a molecule adopt a geometry of the bonded atoms and lone pairs about the central atom in order to maximize electron repulsions.

10) What are the bond angle formed by the central atom P and two of the equatorial fluorine's in the molecular geometry of PF5 ? A) 109.5° B) 120° C) 90°

Which of the following would have the least (narrowest) bond angle? a) CH4 b) NH3 c) H2Be d) HF

In the hydrocarbon(a) What is the hybridization at each carbon atom in themolecule? (b) How many s bonds are there in the molecule?(c) How many p bonds? (d) Identify all the 120° bond anglesin the molecule. [Section 9.6]

Lactic acid is a natural compound found in sour milk. (a) How many π bond occur in lactic acid? How many u bonds? (b) What is the hybridization of atoms 1, 2, and 3? (c) Which CO bond is the shortest in the molecule ? Which CO bond is the strongest? (d) What are the approximate value of the bond angles A, B and C?

Draw the Lewis structure of nitrous acid (HNO2) and then choose the appropriate pair of molecular geometries of the two central atoms. Your answer choice is independent of the orientation of your drawn structure. A) bent (109.5°) / bent (120°) B) bent (109.5°) / tetrahedral + C) bent (109.5°)/ planar D) trigonal planar / bent (109.5°) E) bent (120°) / planar Click to draw a new structure