Polar Amino Acids An amino acid is polar when the R group is an alcohol, thiol, or amide. 11. Acidic Amino Acids An amino acid is acidic when the R group is a carboxylic acid. 12. Basic Amino Acids An amino acid is basic when the R group is an amine.
Friedensburg is a census-designated place (CDP) in Schuylkill County, Pennsylvania, United States. The population was 828 at the 2000 census.
Hanover, Pennsylvania. Hanover: The Hanover Shoe Building is the largest historic building in Hanover. Built in 1910, it was recently converted to apartments and commercial space. The building in the foreground houses the Hanover Fire Museum.