Chemistry Honors and CTP

Here is a youtube video on writing formulas for covalent/molecular formulas https://www.youtube.com/watch?v=DFw3AW2BFUw

Check out this you tube video on writing formulas with Polyatomic ions https://www.youtube.com/watch?v=p9iQ5Qn42DM

Please watch this video before 4/7/15 https://www.youtube.com/watch?v=URc75hoKGLY