Need help with chemistry!

Taurus · 10-19-2008, 12:33 AM

sighs.. I have to do 51 equations for chemistry lab!
But i'll pick some and show ya..

Just wondering if these are right!.. Sorry if i cant make lower case of numbers.. but u can understand the concepts..

If i do anything wrong.. show me what I did wrong and why?

thanks!

(a) + (b) =
a = NH3 (aq) b= BaCl2(aq)

Molecular Equation:
NH3(aq) + BaCl2(aq) → BaH3(aq) + NCl2(aq)
Ionic Equation:
N3+(aq)+ 3H-(aq) + Ba2+(aq) + 2Cl-(aq) → Ba2+(aq) + 3H-(aq) + N3+(aq) + 2Cl-(aq)
Net Ionic Equation:
N/A
No Reaction

(a) + (c) =
a = NH3 c = CoCl2

Molecular Equation:
NH3(aq) + CoCl2(aq) → CoH3(aq) + NCl2(aq)
Ionic Equation:
N3+(aq) + 3H-(aq) + Co2+(aq) + 2Cl-(aq) → Co3+(aq) + 3H-(aq) + N3+(aq) + 2Cl-(aq)
Net Ionic Equation:
Co2+ → Co3+

(a) + (d) =
a = NH3 d = CuSo4

Molecular Equation:
NH3(aq) + CuSo4(aq) → CuH3(aq) + NSo4(aq)
Ionic Equation:
N3+(aq) + 3H-(aq) + Cu4+(aq) + So4-(aq) → Cu3+(aq)+3H-(aq) + N3+(aq) + So4-(aq)
Net Ionic Equation:
Cu4+ → Cu3+

diehardbiker · 10-19-2008, 12:40 AM

Try call Albert Einstein, his number is 800 O its E M2 (800 648 7362) and he might help you

Taurus · 10-19-2008, 12:44 AM

Quote:

Originally Posted by diehardbiker

Try call Albert Einstein, his number is 800 O its E M2 (800 648 7362) and he might help you

very funny.. he is dead anyway..

diehardbiker · 10-19-2008, 12:46 AM

Oh, that is just disappointing

Quote:

Originally Posted by Taurus

very funny.. he is dead anyway..

Taurus · 10-19-2008, 12:57 AM

Quote:

Originally Posted by diehardbiker

Oh, that is just disappointing

quit playing around...

**Maria** · 10-19-2008, 06:54 AM

Oh, yikes! I am not that good with math.

kula23 · 10-19-2008, 10:54 AM

If you needed a help, that's what tutor for.

**Dixie** · 10-19-2008, 12:33 PM

ooh I remember these, having to balance equations. I did fairly well with them when I took Chemistry in HS but its been quite a while I doubt I would be of any help to you.

lsfoster · 10-19-2008, 01:02 PM

I think the first thing you need to do is fix the fact that you're writing H-. Your hydrogens should never really have a negative charge. Even though NH3 is aqueous, I thought it didn't dissociate. It generally acts as a weak base, gaining another H+ to become NH4+. I'm pretty sure when you write the ionic equation, it either doesn't break up, or you write it combined with the water in the reaction as the ions NH4+ + OH-. I haven't checked my solubility rules in a while, though.

Hope that helps!

**JClarke** · 10-19-2008, 04:57 PM

No no, DieHardBikers right, there is another Einstein but it is Jnr. Ask him

authentic · 10-19-2008, 07:43 PM

I bet you $5 that my former chemistry teacher in high school wouldn't solve this.

**Dixie** · 10-19-2008, 08:42 PM

Im betting mine would. He was (and still is) a damn fine chemistry teacher. Our first experiments was making small nitrogen bombs. Of course this was pre-9/11 as well.

10-19-2008, 12:33 AM	#1 (permalink)
Taurus Registered User Join Date: Apr 2008 Location: On Earth Posts: 616	Need help with chemistry! sighs.. I have to do 51 equations for chemistry lab! But i'll pick some and show ya.. Just wondering if these are right!.. Sorry if i cant make lower case of numbers.. but u can understand the concepts.. If i do anything wrong.. show me what I did wrong and why? thanks! (a) + (b) = a = NH3 (aq) b= BaCl2(aq) Molecular Equation: NH3(aq) + BaCl2(aq) → BaH3(aq) + NCl2(aq) Ionic Equation: N3+(aq)+ 3H-(aq) + Ba2+(aq) + 2Cl-(aq) → Ba2+(aq) + 3H-(aq) + N3+(aq) + 2Cl-(aq) Net Ionic Equation: N/A No Reaction (a) + (c) = a = NH3 c = CoCl2 Molecular Equation: NH3(aq) + CoCl2(aq) → CoH3(aq) + NCl2(aq) Ionic Equation: N3+(aq) + 3H-(aq) + Co2+(aq) + 2Cl-(aq) → Co3+(aq) + 3H-(aq) + N3+(aq) + 2Cl-(aq) Net Ionic Equation: Co2+ → Co3+ (a) + (d) = a = NH3 d = CuSo4 Molecular Equation: NH3(aq) + CuSo4(aq) → CuH3(aq) + NSo4(aq) Ionic Equation: N3+(aq) + 3H-(aq) + Cu4+(aq) + So4-(aq) → Cu3+(aq)+3H-(aq) + N3+(aq) + So4-(aq) Net Ionic Equation: Cu4+ → Cu3+ __________________

10-19-2008, 12:33 PM	#8 (permalink)
Dixie May I be found in Him Join Date: Mar 2006 Location: Arkansas Posts: 13,266	ooh I remember these, having to balance equations. I did fairly well with them when I took Chemistry in HS but its been quite a while I doubt I would be of any help to you. __________________ Oh, you will. It is all a dream and since matter cannot be created nor destroyed, the dreams must be real in all their myriad forms. -Beowulf This Delicate Thing God Has Made *The world is measured in peasants; smaller than a unicorn but, bigger than a tidbit!*

10-19-2008, 01:02 PM	#9 (permalink)
lsfoster Registered User Join Date: Oct 2008 Location: Boston Posts: 432	I think the first thing you need to do is fix the fact that you're writing H-. Your hydrogens should never really have a negative charge. Even though NH3 is aqueous, I thought it didn't dissociate. It generally acts as a weak base, gaining another H+ to become NH4+. I'm pretty sure when you write the ionic equation, it either doesn't break up, or you write it combined with the water in the reaction as the ions NH4+ + OH-. I haven't checked my solubility rules in a while, though. Hope that helps! __________________ "Voici mon secret. Il est très simple: on ne voit bien qu'avec le cœur. L'essentiel est invisible pour les yeux."

10-19-2008, 04:57 PM	#10 (permalink)
JClarke I.T Guru Join Date: Nov 2006 Location: Canberra, Australia Posts: 28,052 Blog Entries: 6	No no, DieHardBikers right, there is another Einstein but it is Jnr. Ask him __________________ This is not a ASL version Owner of the Postwhore Club If you have 5,000 posts - please send me a PM requesting to join.

10-19-2008, 07:43 PM	#11 (permalink)
authentic Registered User Join Date: Jun 2005 Location: San Francisco Posts: 6,093	I bet you $5 that my former chemistry teacher in high school wouldn't solve this. __________________

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10-19-2008, 12:40 AM	#2 (permalink)
diehardbiker Registered User Join Date: Mar 2004 Location: In back of Superduty Posts: 11,238	Try call Albert Einstein, his number is 800 O its E M2 (800 648 7362) and he might help you

10-19-2008, 06:54 AM	#6 (permalink)
Maria Premium Member Join Date: Jan 2004 Location: WISCONSIN Posts: 10,309	Oh, yikes! I am not that good with math.

10-19-2008, 10:54 AM	#7 (permalink)
kula23 Registered User Join Date: Aug 2008 Location: Tarpon Springs, FL Posts: 117	If you needed a help, that's what tutor for.

10-19-2008, 08:42 PM	#12 (permalink)
Dixie May I be found in Him Join Date: Mar 2006 Location: Arkansas Posts: 13,266	Im betting mine would. He was (and still is) a damn fine chemistry teacher. Our first experiments was making small nitrogen bombs. Of course this was pre-9/11 as well. __________________ Oh, you will. It is all a dream and since matter cannot be created nor destroyed, the dreams must be real in all their myriad forms. -Beowulf This Delicate Thing God Has Made *The world is measured in peasants; smaller than a unicorn but, bigger than a tidbit!*

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