When (1r,2r)-2-bromocyclohexanol is treated with a strong base, an epoxide (cyclic ether) is formed. suggest a mechanism for formation of the epoxide: draw step 1 of the mechanism. include lone pairs and formal charges in your answer. do not explicitly draw out any hydrogen atoms in this step of the mechanism except for the hydrogen on the oxygen atom of the organic starting material.

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°