elect the correct R or S designation for the stereocenter carbon atom in the molecule. A central carbon is bonded to an isopropyl group on top, an ethyl group to the bottom right. On the left, it is also bonded to a straight propyl chain via a wedged bond and to a methyl group via a dashed bond. The stereochemistry is: R S none of the above

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

Y=‐1x + 7 if y has a value of ‐24 what is the value of x?

How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide