Determining Formulas
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First Example
Second Example
Third Example
Fourth Example
Practice: Ionic Compounds
Compounds with Polyatomic Ions
Practice: Polyatomic Ions
Comments about Process
Practice: Names to Formulas

Determining Names of Formulas

It is possible to figure out the names of ionic compounds just from knowing which elements are involved by considering the charges on the ions.

On the pages listed here (to the left) are several examples of how to determine names. (They are also shown in example 6 of your workbook.) Each example tries to model the step-by-step thought process you can use to figure out names for the ionic compounds (and reviews how we determine the formulas).  Note as you go through these examples that the metal or positive ion is always written first in the formulas and so is named first when naming the compound. Study these examples (here or in your workbook) as needed, then move on to the section "Naming Ionic Compounds". After reading the comments there, try your hand at predicting ionic formulas and naming ionic compounds in the workbook exercises 7 and 8.  If you are still having trouble with naming ionic compounds after looking at the examples, try to answer the questions posed in exercise 9.

 

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E-mail instructor: Eden Francis

Clackamas Community College
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