anonymous
  • anonymous
In the equation ___CH4 + ___O2 ___CO2 + ___H2O, what number will go in front of the H2O to balance the equation?
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
idk that is hard lol
JamesJ
  • JamesJ
I guess what you mean is ___CH4 + ___O2 --> ___CO2 + ___H2O is that right?
anonymous
  • anonymous
yes

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anonymous
  • anonymous
yeah i was going tay what james said
anonymous
  • anonymous
lol
anonymous
  • anonymous
hi james it is snowball
anonymous
  • anonymous
i got banned made another acount thoe
JamesJ
  • JamesJ
well the number of atoms of each element has to balance on both sides. So if we start with one CH4 atom, we must have one CO2 atom: 1 CH4 + ___O2 --> 1 CO2 + ___H2O Now, what can you say about the other two atoms? (Hi online/snowball)
anonymous
  • anonymous
hi james
anonymous
  • anonymous
that there are a 2 of them
anonymous
  • anonymous
yeah
JamesJ
  • JamesJ
Did you see why with one CH4 molecule there must be one CO2 molecule? That is because with one CH4 molecule, there is only one carbon atom on the left-hand side. So there must only be one carbon atom on the right-hand side.
anonymous
  • anonymous
ok. I understand
anonymous
  • anonymous
good
JamesJ
  • JamesJ
So right now we have that 1 CH4 + ___O2 --> 1 CO2 + ___H2O Now, given that, how many hydrogen atoms must there be on the RHS (right hand side)?
anonymous
  • anonymous
4?
JamesJ
  • JamesJ
Yes. And hence how many water molecules H2O must there be?
anonymous
  • anonymous
4
JamesJ
  • JamesJ
No. Each water molecule has two hydrogen atoms, that's why we write H2O and not HO
anonymous
  • anonymous
so it's 2?
anonymous
  • anonymous
yes
JamesJ
  • JamesJ
Yes. Hence we now have that 1 CH4 + ___O2 --> 1 CO2 + 2 H2O Now, count up the oxygen atoms on the RHS and figure out how many O2 molecules we need on the LHS.
anonymous
  • anonymous
2
anonymous
  • anonymous
omh lhs iw my highschool i use to go to
JamesJ
  • JamesJ
right. So the final answer is 1 CH4 + 2 O2 --> 1 CO2 + 2 H2O
anonymous
  • anonymous
ok thank you
anonymous
  • anonymous
no problem
JamesJ
  • JamesJ
You can see that there are some more questions like this here; scroll down a bit. You might find it useful to have a look at them.
anonymous
  • anonymous
ok. I will

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