Science Help Online Worksheet 5-3b Writing Chemical Formulas for Ternary Ionic Compounds

 
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This page is designed to help students practice written problems, and is meant to be printed out.  Hit the print command and show all work in the spaces provided.

Show the following steps;

Step one - Write the symbols for the ions in the compound.
Step two - Look up the oxidation numbers of the ions involved and write them as superscripts to the right of the elemental symbols.
Step three - Use the correct combination of ions to produce a compound with a net charge of zero.
Multiple ions are indicated with subscripts.  Multiple polyatomic ions must be enclosed in parenthesis.

Write the correct chemical formulas for the following:

1.   lithium carbonate

 

 

 

 

 

2.   calcium nitrate
3.   ammonium sulfide

 

 

 

 

 

4.   sodium sulfate

Please forward all questions, comments and criticisms to Gregory L. Curran.
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Last Modified June 08, 2006