Chemistry 2006/ 2007 Club***

Nursing Students Pre-Nursing

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I am starting Chem II this semester. Anyone want to start a club??? :rolleyes:

Droopy thanks for all the info! You are a life saver! I just cant seem to understand the little nuiances of this stuff.

If anyone knows of a book or website that does a good job simplifying this stuff I'd love the information. I do better with remembering if I can understand the why's not just dry memorization!

That's the thing about chemistry... it's the one subject you have to know why and you can't memorize it (well, maybe the polyatomic ions)

for naming inorganic molecules

with ionic bond (metal from group 1 or 2 + nonmetal or polyatomic anion)

cation (metal) name comes first and is named as element... anion name comes second

example: sodium chloride, magnesium phosphate, potassium carbonate

if it's ionic with a transitional metal:

cation name comes first and is named as element followed by roman numeral to indicate charge on cation

anion name comes second

example:

iron (ii) chloride

iron (ii) oxide

covalent compounds containing two elements

first element is named as element

second element is named as second anion

the number of each element is designated using prefixes... mono, di, tri, tetra, penta, hexa, hepta, ocata, nona, deca (no need to use mono if there is only one first element as in carbon monoxide)

example:

dinitrogen tetafluoride n2f4

tetraphosphorus decaoxide p4o10

carbon dioxide co2

for covalent acids (most are) the prefix hydro is used, the ending is changed from ide to -ic acid

if the anion name ends with ate or ide end with -ic acid.

if the anion name ends with ite end with -ous acid

examples

nitric acid hno3 aqueous

nitrous acid hno2 aqueous

sulfuric acid h2so4 aqueous

remember that -ide is just a single nonmetal ending and -ate and -ite are complex anions

http://chemqueen.com

This is my friend's chemistry site. There may be info here to help you.

If you guys need anything else, don't hesitate to ask...

I'm going on vacation for a week so if you guys PM me or ask questions and don't get a response, you'll know why.

Hello Everyone,

Have anyone download any Chemistry software to their TI-83 plus, if so which ones?

Thanks

Hello Everyone,

Have anyone download any Chemistry software to their TI-83 plus, if so which ones?

Thanks

Hi There,

I haven't needed to yet, but I have no idea how to. I still have my manual for the calculator though. Scientific Notation is the only thing we've needed to use our calculators for so far.

You have to purchase the "TI Connectivity Kit USB." I purchased my kit on yesterday from staples for $21.00. Still having problems downloading achives files on the TI-83. :uhoh3: :crying2: :madface:

Hi There,

I haven't needed to yet, but I have no idea how to. I still have my manual for the calculator though. Scientific Notation is the only thing we've needed to use our calculators for so far.

You have to purchase the "TI Connectivity Kit USB." I purchased my kit on yesterday from staples for $21.00. Still having problems downloading achives files on the TI-83. :uhoh3: :crying2: :madface:

Oh...I wonder if I'll need it for my course. What does it do exactly. Are you taking a 100 Chem Course? I only need one class which is like a 101 course but designed specifically for health majors.

Good luck trying to get it to work. Do they have a FAQ or technical questions page on the website?

Anybody here really good at Chemistry?? I need a tutor or at least someone I can ask questions who is on the internet daily....

I am so confused right now. We are on polyprotic acids and nomenclature, and beyond understanding it I guess we just have to memorize all the ions and their names.

Anyone getting this stuff??

-Jasmine

We just finished acids and bases. Yes, you do need to know the names and formulas of the polyatomic ions in order to know which acid it is. The names are directly related to the ion it contains. I can try to help you, ask a more specific question. I will do what I can to help you. Good Luck!a

For things like iron(III) oxide the formula is Fe2O3

and copper (II) oxide .........if you had to come up with the stock system name by only seeing the formula you can look at the charge on the anion right??

for the first one its Fe2O3...... the oxygen has a 3 so that is the charge on the iron right?? thus iron(III) oxide???

and CuO2 would mean copper has a charge of +2 so it would be copper (II) oxide

Is this right?

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