A review of naming and writing formulas of compounds from grade 10 was done for ionic compounds. See p.95-103, 104-105 in your text for help and download the review lesson and some practice questions from the unit 1 page of this site, as the PDF file "ionic nomen lesson". The articles for your Hazardous Materials Anticipation Guide are in the PDF file "hazmat articles".
Homework: p.103#20, 21; p.105 #23; p.106 #1-3
Homework: p.103#20, 21; p.105 #23; p.106 #1-3