Amino acids are the building blocks of proteins. the simplest amino acid is glycine (h2nch2cooh). draw a lewis structure for glycine. (hint: the central atoms in the skeletal structure are nitrogen bonded to carbon, which is bonded to another carbon. the two oxygen atoms are bonded directly to the right-most carbon atom.)

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