***Chemistry - Fall 2005***

Published

Who else is taking Chemisrty this semester? I thought maybe we can check in with each other, and help each other out.

If there is enough of us maybe we can even get a sticky.

I am taking Health Science Chemistry 1.

Specializes in Operating Room.
lol....I thought so! :)

(and I still love it!) THANKS!

BTW....there are 2 chem quizzes on my site now. :)

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Specializes in Operating Room.

I just found a site where there are worksheets to download, etc., but I'm not sure there are answers to them.

BUT.......I did find some useful info:

For memorizing polyatomic ions, in order to remember if it is supposed to be -ite or -ate, remember this rule:

-ite is LITE

-ate is GREAT(er)

http://www.sartep.com/chemistryx/worksheets/pdfs/4_02.pdf

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I am new to "allnurses" and this is my first posting. I am hoping to apply for a RN or LPN program in a couple of years. After being out of college for 12 years I am a bit intimidated. I start Chem 121 this quarter fall 2005. I have no clue what a "sticky" is but it looks like people want one. I would love to stay in contact with people doing chem. I am also trying to raise a 2-year-old while attending college. Call me crazy! I took Psychology of human dev'p last quarter and loved it!

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Specializes in Operating Room.

Welcome to Allnurses.com!

A sticky is just a thread that will stay at the top of all the threads. Those without stickies will eventually be bumped off the first page as new threads are started.

Good luck with your education! :)

I am new to "allnurses" and this is my first posting. I am hoping to apply for a RN or LPN program in a couple of years. After being out of college for 12 years I am a bit intimidated. I start Chem 121 this quarter fall 2005. I have no clue what a "sticky" is but it looks like people want one. I would love to stay in contact with people doing chem. I am also trying to raise a 2-year-old while attending college. Call me crazy! I took Psychology of human dev'p last quarter and loved it!
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Specializes in Operating Room.

Ok, someone needs to learn me something...LOL

CuMnO4

Is it Copper Monomanganese tetraoxide, I'm thinking not.

Is it something totally different? The three elements are confusing me.

Copper and Manganese are transitional metals, and Oxygen is 2-.

And another:

RhSiO3

Rh is Rhodium, a transition metal.

Si is +/- 4

O is -2

And yet another question:

For compounds such as In2S3 is it:

diindium trisulfide

or

indium trisulfide

or

indium sulfide

AND.....how do you know whether or not to use the prefixes mono, di, tri, tetra, penta, hexa, hecto, octo, nano, or deca? I know beginning ones do not need mono, but the others are confusing me.

Are you suppose to use them all the time, or for an exact cross over such as In2S3, do you just use Indium Sulfide. (Indium is +3, and Sulfur is -2)

Thanks a bunch to anyone that can help!! :)

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hi,

CuMnO4 is COPPER PERMANGANATE

the MnO4 is regarded as one and has oxidation # of -1, copper has two possible oxidatn # +2 and +1. in this case it is Cu one but the one can be dropped. so the formula is named as above. hope it helps I am working on my homework right now. so i'm still up.

The RhSiO3 i'm not sure of

ADDITION

to make it easier make use of a well laid out periodic table.

identify the metals and non metals. metals aree to the right of a thick line drawn on the table and non metals to the right of this line.

then u start with say compounds that have only two elements

e.g

1.CaCl2....... calcium chloride; CuCl2...... Copper 2 chloride; notice the 2 element are M and NM;

2. CO...... carbon monoxide; NO....nitrogen monoxide; N2O3.....Dinitrogen trioxide

notice that thses compounds contain 2 NM.

this is as far as i can go for now but u still have comp. having more than two elements. along the line as usual in chem there are a few where the rule is broken.

hope i make a little sense

Ok, someone needs to learn me something...LOL

CuMnO4

Is it Copper Monomanganese tetraoxide, I'm thinking not.

Is it something totally different? The three elements are confusing me.

Copper and Manganese are transitional metals, and Oxygen is 2-.

And another:

RhSiO3

Rh is Rhodium, a transition metal.

Si is +/- 4

O is -2

And yet another question:

For compounds such as In2S3 is it:

diindium trisulfide

or

indium trisulfide

or

indium sulfide

AND.....how do you know whether or not to use the prefixes mono, di, tri, tetra, penta, hexa, hecto, octo, nano, or deca? I know beginning ones do not need mono, but the others are confusing me.

Are you suppose to use them all the time, or for an exact cross over such as In2S3, do you just use Indium Sulfide. (Indium is +3, and Sulfur is -2)

Thanks a bunch to anyone that can help!! :)

Up Vote Up Vote ×
Specializes in Operating Room.

OMG, thanks! I knew that, but for some reason I didn't catch the MnO4! I've caught the other polyatomics we had to learn, but that one snuck by! WHEW! Good thing I'm not taking my test right now! lol

I printed off some worksheets from online & practicing. Our first test is Wednesday.

Thanks again, and good luck to you! :)

hi,

CuMnO4 is COPPER PERMANGANATE

the MnO4 is regarded as one and has oxidation # of -1, copper has two possible oxidatn # +2 and +1. in this case it is Cu one but the one can be dropped. so the formula is named as above. hope it helps I am working on my homework right now. so i'm still up.

The RhSiO3 i'm not sure of

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OMG, thanks! I knew that, but for some reason I didn't catch the MnO4! I've caught the other polyatomics we had to learn, but that one snuck by! WHEW! Good thing I'm not taking my test right now! lol

I printed off some worksheets from online & practicing. Our first test is Wednesday.

Thanks again, and good luck to you! :)

you are welcome. and In2S3 would be Indium Sulphide

note M and NM

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Specializes in Operating Room.
you are welcome. and In2S3 would be Indium Sulphide

note M and NM

Thanks again. Yes, I just read where the prefixes are used to name molecular compounds...composed solely of nonmetals. :)

I guess I'm not doing too poorly for only 2 classes, but still have a long way to go before I'm ready for my test Wednesday!

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Specializes in Operating Room.

Thanks, I understand this part now, not that it was that hard, just wasn't there yet in my mind...lol

Just to let you know you accidently wrote Metals were on the Right....just in case someone else reads this. :)

Thank you, thank you, thank you!!!!!!

ADDITION

to make it easier make use of a well laid out periodic table.

identify the metals and non metals. metals aree to the right of a thick line drawn on the table and non metals to the right of this line.

then u start with say compounds that have only two elements

e.g

1.CaCl2....... calcium chloride; CuCl2...... Copper 2 chloride; notice the 2 element are M and NM;

2. CO...... carbon monoxide; NO....nitrogen monoxide; N2O3.....Dinitrogen trioxide

notice that thses compounds contain 2 NM.

this is as far as i can go for now but u still have comp. having more than two elements. along the line as usual in chem there are a few where the rule is broken.

hope i make a little sense

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thanks it was a typo

NM to the right M to the left

Thanks, I understand this part now, not that it was that hard, just wasn't there yet in my mind...lol

Just to let you know you accidently wrote Metals were on the Right....just in case someone else reads this. :)

Thank you, thank you, thank you!!!!!!

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Specializes in Operating Room.

I'm thinking RhSiO3 is Rhomium Silicate. :)

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