View Full Version : Do anyone here happen
to know a lot about or have a major in chemistry?
Derfud
2004-06-06, 03:27 PM
I did very well in the 10th grade portion, but that probably isnt what you are looking for. But all in all, chemistry pwns.
EarlyDawn
2004-06-06, 03:28 PM
I'm decent at it.
"What are the outer transition metals? What are the inner transition metals? Which are manmade and and explosive and why?
Rayder
2004-06-06, 03:37 PM
I'm decent at it.
"What are the outer transition metals? What are the inner transition metals? Which are manmade and and explosive and why?
Why are noble gases unreactive?
Infernus
2004-06-06, 03:45 PM
let me see what i can remember... the noble gases are unreactive because they have nothing to share with anythign else... and no gaps to fill... atleast thats what it is if i recall correctly...
sweet. thanks.
all right, heres another:
what does the term polar mean, when it comes to covalent bonds?
i hate finals...
Strygun
2004-06-06, 03:59 PM
Why are noble gases unreactive?
because they already have an octet, meaning that their outer-most energy level is full.
Infernus
2004-06-06, 04:03 PM
because they already have an octet, meaning that their outer-most energy level is full.
:/ i knew it was soemthign abotu them not being able to recieve anymore electrons...
ChewyLSB
2004-06-06, 04:26 PM
A Polar covalent bond is the weakest of all bonds, but it is a very special bond. The best example is water. Water is H20, and when the Hydrogen's bond, they become slightly positive. The oxygen end of the molecule is slightly negative. This causes the slightly positive Hydrogen end to become attracted to a slightly negative Oxygen end of another water molecule. This is why water "sticks" to each other.
AztecWarrior
2004-06-06, 04:27 PM
Why are noble gases unreactive?
Their outer electron layer is full. Atoms react to either fill it or give it to another atom to fill...if it's full already, it won't share.
Bighoss
2004-06-06, 04:33 PM
"What are the outer transition metals? What are the inner transition metals? Which are manmade and and explosive and why?
My god what are they teaching you these days... God did! Either that or it was magic.
... All I know is that they have their valence electrons in more than one shell. I haven't taken chemistry yet so I can't really tell you much more.
Onizuka
2004-06-06, 05:59 PM
Oh god, all this is on the tip of my mind, but I can't quite reach it. I remember doing all this stuff though, hated it.
Why are noble gases unreactive?
Octet electron configuration. In other words, they have compltely filled energy paths.
Rayder
2004-06-06, 06:21 PM
Is someone talking about elements? Because, no elements are manmade, they're all natural.
tell that to my chem teacher.
Is someone talking about elements? Because, no elements are manmade, they're all natural.
Youre full of shit.
Edit: http://www.webelements.com/
* Name: ununquadium
* Symbol: Uuq
* Atomic number: 114
* Atomic weight: [ 289 ]
* CAS Registry ID: 54085-16-4
* Group number: 14
* Group name: (none)
* Period number: 7
* Block: p-block
Description speak description of ununquadium (requires RealPlayer) RealPlayer
Here is a brief description of ununquadium.
* Standard state: presumably a solid at 298 K
* Colour: unknown, but probably metallic and silvery white or grey in appearance
* Classification: Metallic
* Availability: Not commercially available.
Element 114 was reported informally in January 1999 following experiments towards the end of December 1998 involving scientists at Dubna (Joint Institute for Nuclear Research) in Russia apparently using isotopes supplied by scientists at the Lawrence Livermore National Laboratory, USA. Only one atom was identified and the claim has not yet been ratified. The results of calculations suggest that element 114 will not form a tetrafluoride UuqF4, but could be isolated as a water-soluble difluoride UuqF2.
Isolation
Here is a brief summary of the isolation of ununquadium.
Currently, the identification of element 114 is yet to be confirmed. As only about three atoms of element 114 has ever been made (through nuclear reaction involving fusing a calcium atom with a plutonium atom) isolation of an observable quantity has never been achieved, and may well never be.
Rayder
2004-06-06, 06:24 PM
tell that to my chem teacher.
Well your chem teacher is either stupid, or is trying to trick you. Is this a written question? Or did he say some elements were manmade and you had to figure out which ones were?
Infernus
2004-06-06, 06:25 PM
Is someone talking about elements? Because, no elements are manmade, they're all natural.
HA... no... most of the bottom of the periodic table is man made...
EDIT: Man Made isnt the best term... most of the bottom of the periodic table has to be synthesised because it is not naturally occuring...
Rayder
2004-06-06, 06:28 PM
The fuck are you talking about? They're natural.
isnt the little section that's seperated at the bottom manmade?
edit....err....synthisizezdasfadgfadf...?
The fuck are you talking about? They're natural.
In the loosest sense of the word. yes, they are composed of electrons and whatnot, and we really cant make those. But they dont exist naturally.
Various research attempts in space has yielded manmade elements at zero gravity. Also, atom smashers have yielded some manmade atoms after sending two elements into each other at sublight speed, and the scattered electrons and neurons bonded together to form new elements.
Dunno what theyre teaching you, but theyre wrong.
All of the elements are natural in a sense, but not all of them occur in nature by themselves.
Lartnev
2004-06-06, 06:36 PM
I think the definition is clearer if you talk of it in terms of naturally occuring, and man created elements.
"man made" elements tend to exist for extremely short periods of time (we're talking milliseconds here) and are created in very extreme conditions (such as those in a nuclear reaction). At least that's my understanding of it.
whaetever...MORE HELP WITH FINALS!! NOW!
what is the difference between entropy and enthalpy???
Infernus
2004-06-06, 06:38 PM
In the loosest sense of the word. yes, they are composed of electrons and whatnot, and we really cant make those. But they dont exist naturally.
Various research attempts in space has yielded manmade elements at zero gravity. Also, atom smashers have yielded some manmade atoms after sending two elements into each other at sublight speed, and the scattered electrons and neurons bonded together to form new elements.
Dunno what theyre teaching you, but theyre wrong.
So synthesized...
Rayder
2004-06-06, 06:40 PM
http://www.howe.k12.ok.us/~jimaskew/cheat.htm
whaetever...MORE HELP WITH FINALS!! NOW!
what is the difference between entropy and enthalpy???
HEY! GUESS WHAT!?
:google:
Infernus
2004-06-06, 06:49 PM
whaetever...MORE HELP WITH FINALS!! NOW!
what is the difference between entropy and enthalpy???
Entrophy? I've heard of Entropie which is the level of uncertainty regarding the outcome of an experiment... the other one I have no idea...
an acid and a base will always produce what two things?
Infernus
2004-06-06, 06:54 PM
an acid and a base will always produce what two things?
An Acidic base?
A Basic Acid?
an acid and a base will always produce what two things?
A salt, if combined.
And the other I dunno. Carbon Dixoide?
An Acidic base?
A Basic Acid?:lol: seriously, cmon now.
Infernus
2004-06-06, 07:00 PM
:lol: seriously, cmon now.
In reality you have passed my realm of knowledge... we dont get chem until junior year :/ ... I need a better school...
Dude....Doesnt your school provide...Books?
khr0n: acid + base = interracial babies
khr0n: interracial babies own
ten twntyfour: heh im an interracial baby
ten twntyfour: oOo ya
ten twntyfour: *barry white*
ten twntyfour: LOL
khr0n: hahaha
Dude....Doesnt your school provide...Books?
yes, but at the same time you guys are answering questions, im doing bookwork, so you guys are like doubling my workrate. THANK YOU SO MUCH I WANT TO HAVE YOUR BABIES! YOUR INTERRACIAL BABIES!
Infernus
2004-06-06, 07:06 PM
yes, but at the same time you guys are answering questions, im doing bookwork, so you guys are like doubling my workrate. THANK YOU SO MUCH I WANT TO HAVE YOUR BABIES! YOUR INTERRACIAL BABIES!
You can a have mine... call me: 215-46...
khr0n: "THANK YOU SO MUCH I WANT TO HAVE YOUR BABIES! YOUR INTERRACIAL BABIES!"
khr0n: HAHA
ten twntyfour: haha
ten twntyfour: im tired
ten twntyfour: as you can tell
ten twntyfour: or im on oreo high
ten twntyfour: i ate oreo
ten twntyfour: LOTS OF OREOS
khr0n: OMG NOWES
ten twntyfour: ORE --- EE ---- OOOOOOOOOOOOOoooooooooooooooSOOS
khr0n: how many exactly.
ten twntyfour: OH NOES OREOS
ten twntyfour: OH NOREOS
ten twntyfour: A LOT
khr0n: OHOAOHA
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