Some of the information in these videos is more advanced than what we will cover in this course, but students have told me this website was helpful to them.
Here are some tips and tricks for determining bond type without looking at the electro negativity values. If you have a periodic table, and I'll just draw a sketch. You don't have to draw it out of course. Then the periodic table looks more like this. And so pretty easy.
This video shows what acid rain is, what causes it, what is is doing to our environment, what will happen in the future, and possible solutions. This video put it into perspective better then reading it for me.
ALSO, listen carefully to the song playing!!!
Lemons contain more sugar than strawberries. kotz, stock.xchng Did you know? Here are some fun, interesting and sometimes weird chemistry facts. Did you know... you can't taste food without saliva. Did you know... it's possible to get sick or even die from drinking too much water. Did you know...
Ah!! Dihydrogen monoxide! Feel free to share with friends prior to explaining to them what dihyrdogen monoxide really is... and then you can tell them why chemistry actually kinda matters! :)
I'm not sure this belongs here, but I found this website that has a helpful hint about remembering the difference between independent and dependent variables. I could never remember the difference before I read this; now it makes sense:
(Independent variable) causes a change in (Dependent Variable) and it isn't possible that (Dependent Variable) could cause a change in (Independent Variable).
For example:
(Time Spent Studying) causes a change in (Test Score) and it isn't possible that (Test Score) could cause a change in (Time Spent Studying).
We see that "Time Spent Studying" must be the independent variable and "Test Score" must be the dependent variable because the sentence doesn't make sense the other way around.