Acetone (c3h6) has a chain of three c atoms with h atoms bonded to the end c atoms and an o bonded to the central c. a) draw the lewis structure, b) give the hybridization of the o and three c atoms, and c) estimate the bond angles about each c.

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3