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Fender Bender
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Re: Chemestry Help!

Dec 13, 2006


Aowen wrote:
Hey, I have a chemestry test today, and I'm a little confused.

Okay, say we take barium chloride, which is composed of Ba(barium), and choloride (Cl-) This becomes BaCL2 to forum barium choloride, but where does that two come from? How could come when you have Silver(Ag) and Nitrate(NO3-) you get AgNO3 but the 3 is given.


Message Edited by Aowen on 12-12-2006 08:11 PM

Ok let me try to explain this as simple as possible. Ba (bariums) has a charge of +2, Cl (chloride) has a charge of -1, Whenever you put compounds together the total charge must equal to 0. So BaCl (would be +2-1 = -1) which is not zero. So it must be BaCl2 (+2+(-1x2))=0!)

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Last Guardian
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Re: Chemestry Help!

Dec 13, 2006


KaMeLeOn_ wrote:


Aowen wrote:
I still don't get it! New question: If BaCL2 + AgNO3----> What would the product be if they reactd? Im confused! Eeek!



BaCl2+2AgNO3---> 2AgCl + Ba (NO3)2        ---- its a double displacement


??? Do you have AIM or Messenger? I kinda need you to explain that....

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Re: Chemestry Help!

Dec 13, 2006


KaMeLeOn_ wrote:


Aowen wrote:
Hey, I have a chemestry test today, and I'm a little confused.

Okay, say we take barium chloride, which is composed of Ba(barium), and choloride (Cl-) This becomes BaCL2 to forum barium choloride, but where does that two come from? How could come when you have Silver(Ag) and Nitrate(NO3-) you get AgNO3 but the 3 is given.


Message Edited by Aowen on 12-12-2006 08:11 PM

Ok let me try to explain this as simple as possible. Ba (bariums) has a charge of +2, Cl (chloride) has a charge of -1, Whenever you put compounds together the total charge must equal to 0. So BaCl (would be +2-1 = -1) which is not zero. So it must be BaCl2 (+2+(-1x2))=0!)


Is it -2 because of the group it's in in the Periodic table?
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Fender Bender
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Re: Chemestry Help!

Dec 13, 2006


Aowen wrote:


KaMeLeOn_ wrote:


Aowen wrote:
Hey, I have a chemestry test today, and I'm a little confused.

Okay, say we take barium chloride, which is composed of Ba(barium), and choloride (Cl-) This becomes BaCL2 to forum barium choloride, but where does that two come from? How could come when you have Silver(Ag) and Nitrate(NO3-) you get AgNO3 but the 3 is given.


Message Edited by Aowen on 12-12-2006 08:11 PM

Ok let me try to explain this as simple as possible. Ba (bariums) has a charge of +2, Cl (chloride) has a charge of -1, Whenever you put compounds together the total charge must equal to 0. So BaCl (would be +2-1 = -1) which is not zero. So it must be BaCl2 (+2+(-1x2))=0!)


Is it -2 because of the group it's in in the Periodic table?


-2? where did you get that from?
 
what grade are you in?

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Ghost of Sparta
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Re: Chemestry Help!

Dec 13, 2006


Aowen wrote:
Is it -2 because of the group it's in in the Periodic table?

Yes it is.
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Re: Chemestry Help!

Dec 13, 2006


aznsniper911 wrote:


Aowen wrote:
Is it -2 because of the group it's in in the Periodic table?

Yes it is.


But after that, I'm confusedSmiley Tongue I missed my last science class where they reviewed everything and I'm the only kid who hasn't had chemestry before....so....crapSmiley Sad Test today...I might ask him if I can make it up or something..
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Re: Chemestry Help!

Dec 13, 2006
sorry not in chemistry
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Re: Chemestry Help!

Dec 13, 2006


KaMeLeOn_ wrote:


Aowen wrote:


KaMeLeOn_ wrote:


Aowen wrote:
Hey, I have a chemestry test today, and I'm a little confused.

Okay, say we take barium chloride, which is composed of Ba(barium), and choloride (Cl-) This becomes BaCL2 to forum barium choloride, but where does that two come from? How could come when you have Silver(Ag) and Nitrate(NO3-) you get AgNO3 but the 3 is given.


Message Edited by Aowen on 12-12-2006 08:11 PM

Ok let me try to explain this as simple as possible. Ba (bariums) has a charge of +2, Cl (chloride) has a charge of -1, Whenever you put compounds together the total charge must equal to 0. So BaCl (would be +2-1 = -1) which is not zero. So it must be BaCl2 (+2+(-1x2))=0!)


Is it -2 because of the group it's in in the Periodic table?


-2? where did you get that from?
 
what grade are you in?


I'm a freshman...but I'm the only kid in my class who hasn't had chemestry and I missed last class.....
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Fender Bender
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Re: Chemestry Help!

Dec 13, 2006


Special_Ops wrote:
sorry not in chemistry


then dont post

i'm confused on this stuff as well. when you're replacing, you don't take subscipts unless they are part of a polyatomic ion like sulfate or nitrate.
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Fender Bender
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Re: Chemestry Help!

Dec 13, 2006


Aowen wrote:
Hey, I have a chemestry test today, and I'm a little confused.

Okay, say we take barium chloride, which is composed of Ba(barium), and choloride (Cl-) This becomes BaCL2 to forum barium choloride, but where does that two come from? How could come when you have Silver(Ag) and Nitrate(NO3-) you get AgNO3 but the 3 is given.


Message Edited by Aowen on 12-12-2006 08:11 PM

Barium is in the group IIA which means it has a 2+ charge and Nitrate is a Polyatomic ion which means it has two or more combined elements. The charge for Nitrate is jus given
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