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Balancing Equations (Year 10) (1 Viewer)

R4diance

Member
Joined
Apr 13, 2013
Messages
101
Gender
Male
HSC
2015
Hey guys.
I need some help in balancing Chemical Equations.

e.g.
C2H6 + O2 -> H2O + CO2
aC2H6 + bO2 -> cH2O + dCO2

b=7/2 a
c=3a
d=2a

aC2H6 + 7/2aO2 -> 3aH2O + 2aCO2
Answer: 2C2H6 + 7O2 -> 6H2O + 4CO2

The answer is correct, however is there another way to solve this? Which method would be most reliable?

Thank you in advance. :)
 

AnimeX

Member
Joined
Aug 11, 2012
Messages
588
Gender
Male
HSC
N/A
Hey guys.
I need some help in balancing Chemical Equations.

e.g.
C2H6 + O2 -> H2O + CO2
aC2H6 + bO2 -> cH2O + dCO2

b=7/2 a
c=3a
d=2a

aC2H6 + 7/2aO2 -> 3aH2O + 2aCO2
Answer: 2C2H6 + 7O2 -> 6H2O + 4CO2

The answer is correct, however is there another way to solve this? Which method would be most reliable?

Thank you in advance. :)
You should just do it intuitively, deal with the carbons followed by the hydrogens, always do oxygen last.

Personally, I don't use the a, b c d method I just do trial and error, I find it works best.
 

R4diance

Member
Joined
Apr 13, 2013
Messages
101
Gender
Male
HSC
2015
You should just do it intuitively, deal with the carbons followed by the hydrogens, always do oxygen last.

Personally, I don't use the a, b c d method I just do trial and error, I find it works best.
Guess I'll need more practice then :p Thanks for the advice :)
 

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