How Compounds are Named

• Compounds are sometimes named with and -ide at the end if there are only two elements present.
• At times, prefixes like mon-, di, or tri- are added to the element names.
• Chemical formulas have symbols that show you which elements have combined to form that particular compound.
• Subscripts tell you the number of atoms that have combined.
• Sugar is made up of six carbon atoms, 12 hydrogen atoms, and six oxygen atoms combined.

• Carbon dioxide is made up of one carbon atom and two oxygen atoms.
• Water is made up of one oxygen atom and two hydrogen atoms.