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<center>Review Homework for Ionic Compounds</center> 
 
 
Part I: Give the correct chemical formula or chemical name for the following. 
 
a. Calcium hydroxide 
 
b. Sn1(<nowiki>CO</nowiki>3)2 
 
c. Copper (<nowiki>II</nowiki>) sulfite 
 
 
Part <nowiki>II</nowiki>: For the following elements, give the charge of each ion, <nowiki>LDS</nowiki> of each ion, Chemical name, Chemical formula and <nowiki>LDS</nowiki> for the compound. See homework for making the table. 
 
 
 
a. Calcium and flourine 
 
 
 
 
 
 
 
 
 
 
b. Potassium and nitrogen 
 
 
 
 
 
 
 
 
 
 
 
 
Part <nowiki>III</nowiki>: Answers the following questions: 
 
a. What elements make an anion and what does it mean with respect to electrons? 
 
 
b. What elements make cations and what does it mean with respect to electrons? 
 
 
c. How can you tell the ion's charge from the Periodic Table? What rule is it that explain how many valence electrons must be around (or shared) each element after bonding called?

d. What does the subscripts in an ionic compound chemical formula mean? What is an Empirical Formula? 
 
 
 
Part <nowiki>IV</nowiki>: Answer all question showing all work 
 
a. A compound was found to have 6.25g of carbon and 1.23g of hydrogen. What is the percent composition of each element in the compound? 
 
 
 
 
 
 
 
 
 
 
 
 
b. What is the percent composition of Ba1(<nowiki>NO</nowiki>3)2. 
 
 
 
 
 
 
 
 
 
 
 
 
c. What is the Empirical Formula of the compound that has the following percent composition: 72.4% Fe and 27.6% O. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
d. What is the Empirical formula of the compound that has 136.4g of oxygen (O) 8.6g of hydrogen (H).

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