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Topic: are these equations correct?  (Read 4799 times)

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Offline jennielynn_1980

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are these equations correct?
« on: June 01, 2006, 01:27:32 PM »
I was given the names and I had to come up with the formula's and reactions.  How do they look?

a) zinc sulphate + barium nitrate -->
   ZnSO4 + Ba(NO3)2 --> ZN(NO3)2 + BaSO4

b) gold (III) sulphate + barium chloride -->
    Au2(SO4)3 + 3BaCl2 --> 3BaSO4 + 2AuCl3

c) zinc + mercurous nitrate --> 
   2Zn + Hg2Cl2 --> 2Hg + ZnCl2

d) tin + antimony (V) chloride -->
    5Sn + 2SbCl5 --> 2Sb + 5SnCl2

e) calcium + water -->
    Ca + 2H2O --> Ca(OH)2 + H2

f) ferrous bromide + phosphoric acid -->
   3FeBr2 + 2H3PO4 --> 6HBr + Fe3(PO4)2

g) the complete combustion of ethene C2H4-->
     C2H4 + 3O2 --> 2H2O + 2CO2

h) calcium carbonate + hydrobromic acid -->
    CaCO3 + 2HBr --> CaBr2 + CO2 + H20


Offline Mitch

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Re: are these equations correct?
« Reply #1 on: June 01, 2006, 01:29:18 PM »
I seriously don't want this to become a homework check website. So please keep these kinds of posts to a minimum.
Most Common Suggestions I Make on the Forums.
1. Start by writing a balanced chemical equation.
2. Don't confuse thermodynamic stability with chemical reactivity.
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Offline Albert

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Re: are these equations correct?
« Reply #2 on: June 01, 2006, 01:32:03 PM »
They all seem correct.

Offline jennielynn_1980

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Re: are these equations correct?
« Reply #3 on: June 01, 2006, 01:40:04 PM »
I seriously don't want this to become a homework check website. So please keep these kinds of posts to a minimum.

Sorry  :-[  Since it is a homestudy course I don't have a class to check them in.  I will find another way.  My apologies.

Offline Alberto_Kravina

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Re: are these equations correct?
« Reply #4 on: June 01, 2006, 01:40:49 PM »
Quote
They all seem correct.

Quote
c) zinc + mercurous nitrate -->
   2Zn + Hg2Cl2 --> 2Hg + ZnCl2
I don't see any nitrate....

Offline Albert

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Re: are these equations correct?
« Reply #5 on: June 01, 2006, 01:44:25 PM »
True.  :-[

Still, the chemical equations are properly balanced, aren't they?

Offline jennielynn_1980

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Re: are these equations correct?
« Reply #6 on: June 01, 2006, 01:49:05 PM »
Oops, I must have read it as chloride because both answers on either side contain chloride. *smacks forehead*

Offline Donaldson Tan

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Re: are these equations correct?
« Reply #7 on: June 01, 2006, 07:08:42 PM »
I seriously don't want this to become a homework check website. So please keep these kinds of posts to a minimum

Seconded
"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006

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