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.
Hudson, North Carolina. Located in Western North Carolina, Tri-County Motor Speedway is a 4/10 mile banked asphalt track racing weekly on Friday night as it has for most of it's existence. A NASCAR Home Track facility, TCMS features Late Models as it's premier division and has been a proving ground for many of today's rising talents. Come check out the action at TCMS, 5 minutes from I-40 in Hudson, NC.