A compound is a chemical substance that forms when two or more different elements combine in a fixed ratio. Water (H2O), for example, is a compound that is made up of two hydrogen atoms for every one oxygen atom. Sodium chloride (NaCl) is a compound made up of one sodium atom for every chlorine atom.
Hudson, Iowa. Hudson is a city in Black Hawk County, Iowa, United States. The population was 2,282 at the 2010 census. The rural community of Hudson has grown in recent years and is included as a part of the Waterloo-Cedar Falls Metropolitan Statistical Area. Contents.
1 Hillsdale County National Bank: Hudson Branch at 325 Railroad St, branch established on 1923/01/01. 2  Info updated 2006/11/03: Bank assets: $382.5 mil, Deposits: $324.7 mil, headquarters in Hillsdale, MI, positive income, Commercial Lending Specialization, 13 total offices, Holding Company: Cnb Community Bancorp, Inc.