Chem help. balance equation?

Question

C3H8 + O2 --> CO2 + H2O

Answer 1

C3H8 + 5O2 ==> 3CO2 + 4H2O

Answer 2

Solved.

_C3H8 + _O2 --> _CO2 +_H2O

_C3H8 + 5O2 --> 3CO2 +4H2O

Here is an ONLINE BALANCER:

http://www.webqc.org/balance.php

Hope this helps.

PS: This is a hydrogen combustion

Answer 3

1C3H8+5O2-->3CO2+4H2O try that it should work

Answer 4

C3H8+5O2-->3CO2+4H2O

Answer 5

Hi Love,

You've got plenty of folks telling you the balanced chemical equation for the combustion of propane.

C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(g)

But I notice that B_morrow... suggested that you first balance the carbon atoms and then the oxygen atoms, while finally balancing hydrogen.  

I would assert that there is a better sequence to follow.  Balance the oxygen last.  The reason is that oxygen occurs in several compounds and you can place any coefficient in front of oxygen to finish balancing the equation.

So, yes, start with carbon, then balance the hydrogen and finally the oxygen.  

As a rule of thumb, balance the element that occurs in several compounds last.

Answer 6

darn!  i threw all my notes away after school ended for the summer.  but i think the guy ahead of me is right.

Answer 7

C3H8 + 5O2 --> 3CO2 + 4H2O

Answer 8

Your balanced equation is: C3H8 + 5O2 = 3CO2 + 4H2O.  For help learning how to balance equations go to this web site and it will teach you an easy to balance them:

http://misterguch.brinkster.net/eqnbalan...

If you've given it your best shot and still can't get it, go to this web site and, assuming your subscripts are correct, it will balance your equations for you:

http://adomas.org/bceq/

Answer 9

c3h8 + 3O2 ------> 3CO2 + 4H2O

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Answer 10

dont matter

Answer 11

STEPH

Answer 12

Balance carbons first:

C3H8 + O2 ---> 3(CO2) + H2O

Balance Oxygens next

C3H8 + 4(O2) ---> 3(CO2) + 2(H2O)

Balance Hydrogens last

C3H8 + 5(O2) ---> 3(CO2) + 4(H2O)

Answer 13

Balanced equation:

C3H8 + 5 O2 = 3 CO2 + 4 H2O

Easy to use tool available here

http://www.webqc.org/balance.php

Answer 14

C3H8 + 5O2 --> 3CO2 + 4H2O

On left: 3 Cs, 8Hs and 10 Os (O2 is diatomic, so 0=0, in each O2 there are 2 O atoms)

On right: 3Cs, 8Hs (4x2) and 10 Os (4 + (3x2))

Same number of each atoms on each side, so it balences

I would balence the Cs first, then Hs, then finish with O as it is the only element that is bonded to only itself on the right, so is more simple to balence.