Physical Science 20 - Feb 5

Today in class I checked Assignments C1 and C2 and we quickly went over the answers.  For students who didn't get some of the answers or who were absent today, check the answer key folder in the Physical Science 20 Course Notes link.  We continued on today learning about polyatomic ions and how to write formulas for them.  Students had the rest of class to work on Assignment C3 which involved naming and writing formulas for compounds involving polyatomic ions.  This is not due tomorrow however due to some issues I had in class getting information to the students.  This will be due on Monday along with Assignment C4 which we will learn about tomorrow.