Chemistry 5.3 Formula Writing: Ionic Compounds

A lesson on writing formulas for binary ionic compounds as well as ionic compounds containing polyatomic ions. The cross-over method is demonstrated.

[candacemagraw]

Mr. Issacs, I have used your videos for my classes for several semesters.
You have done a fantastic job explaining a challenging task in a compact video.
THANK YOU!
CRMagraw (Chemistry teacher for 29 years.)

[jamesgraul]

You are an exceptional teacher! Your explanations are so clear. I hope every student of chemistry finds this site!

[monstersrock]

I have a test tomarrow and have been studying for hours, asking questions and not getting this concept. WIth this video, i learned my problem on crossing over. I have redone some of my problems and am getting them right now. Thanks a ton

[chizmo]

I love your videos. They are the easiest to understand of any I have seen!
Thank

[KDTech]

Seriously, thanks for this series of videos.  I work with an instructor who has a tendency of explaining Chemistry as though we already know the course.  In less than eight minutes, you explained more than an hours-worth of lecture.  Keep it up.

[ashleey]

can i just say that you are amazing. this makes so much sense to me. being a first year in uni and not doing chem throughout highschool. made it way easier to pick up today. especially given the fact my exam is on thrusday and I have not studied whatsoever. THANKS !!!

[shinosaurusrex]

Oh my gosh thank you so much! Life saver! Better then 1 year of a chem teacher! In 8 mins you do better then 1 year of chem classes? Go get an Einstein degree! <3

[motherofAl]

Very helpful!!! Makes it plain and clear so that you can start writing formulas right away!!!!

[NicholePinaiseeyou]

I want to thank you for all of your chemistry video's, they are really helpful for my chemistry 101 class. Since my teacher is very vague on teaching us material in class.

[Krisk]

I was never taught this crossover method, thank-you so much

[daricnd]

thanks for your videos! you explain with such pace!

[wanderingwalksasmr]

great explanation of the cross over method!
thanks!

[Kathy]

Thank you!!! Now I don't have to fail my chem exams tomorrow!!

[oliviawhittle]

Thank you for your video, for once I finally understand this!

[itskrill]

finally got it.... thanks i watched like 4 videos

THANKS MAN YOU HAVE ODNE IT AND SOLVED MA PROBLEM!!THANKS=D

[erikamadray]

Thank you for the "Aha!" moment!