Monday 16 January 2012

Word Equations and Naming Coumpounds

We're going back to the very beginning; when we first learned to name compounds. Remember? Well, here's a little refresher...

For example,
If a word equations is:
Aluminium + Hydrochloric Acid = Aluminium Chloride + Hydrogen
The chemical formula is:
Al + HCl = AlCl3 + H2
BUT WAIT! We still have to balance it! So, the proper equation is:
2Al + 6HCl = 2AlCl3 + 3H2


Now that was easy, wasn't it? Here's a chart reminding you of all the prefixes for covalent compounds:














Don't forget about naming acids! To help remember, I "ate" something "ic"y. If you just say that, the other ending of "ous" for "ite" just falls into place.
Here is a little video to clear up any other confusion:

And one more to help with balancing:

No comments:

Post a Comment