anonymous
  • anonymous
When asked to balance the equation: C2H6 + O2 = CO2 + H2O the following suggestions were made: C2H6 + 5O2 = 2CO2 + 3H2O C2H6 + 5O = 2CO + 3H2O 2C2H6 + 7O2 = 4CO2 + 6H2O Which answer is correct and what is wrong with the others?
Mathematics
schrodinger
  • schrodinger
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Mertsj
  • Mertsj
In the first answer, how many carbon atoms on the left side?
anonymous
  • anonymous
2
anonymous
  • anonymous

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Mertsj
  • Mertsj
how many carbon atoms on the right side?
Photon336
  • Photon336
the number of each atom must be equal on each side of the equation remember law of conservation of mass
anonymous
  • anonymous
ok
anonymous
  • anonymous
so..which one of these answers is correct?
Photon336
  • Photon336
@1stwilight before I help you out can you tell me which one you think it is and why?
Photon336
  • Photon336
anonymous
  • anonymous
It looks like all of them are correct
anonymous
  • anonymous
but I know that's not right
Photon336
  • Photon336
@15Twilight follow this to see whether an equation is balanced make a chart. and count up the number of each atom in both the reactants and the products. C2H6 + O2 = CO2 + H2O |dw:1443491750022:dw| based of of this is the equation balanced?
anonymous
  • anonymous
no
Photon336
  • Photon336
good. for your reference always do that in the future
Photon336
  • Photon336
we need to balance this now, this takes time and there's no real i guess strategy you just have to try your best to put coefficients infront of the reactants+ products to balance them.
Photon336
  • Photon336
C2H6 + 4O2 = 2CO2 + 3H2O
anonymous
  • anonymous
2 atoms of carbon 6 atoms of hydrogen, 8 atoms of oxygen products: 2 atoms of carbon 4 atoms of oxygen, and 6 atoms of hydrogen ..am I right?

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