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# higher chemistry watch

1. in which reaction is the volume of product less than the volume of reactants
a) CH4+2O2=CO2+2H2O
b)2NH3=N2+3H2
c)H2+Cl2=2HCl
d)2CO+O2=2CO2
2. (Original post by jackiemcnair)
in which reaction is the volume of product less than the volume of reactants
a) CH4+2O2=CO2+2H2O
b)2NH3=N2+3H2
c)H2+Cl2=2HCl
d)2CO+O2=2CO2
I would asume, if this is all the information you're given, that you're looking at molar ratios?
So A) 1 CH4 + 2 O2 = 1 CO2 + 2 H2O
So there is 3 moles of substance on each side? I hope that makes sense?? If you do the same for B, C & D you should be able to work out the answer easily enough I hope
3. (Original post by jackiemcnair)
in which reaction is the volume of product less than the volume of reactants
a) CH4+2O2=CO2+2H2O
b)2NH3=N2+3H2
c)H2+Cl2=2HCl
d)2CO+O2=2CO2
I see you've made a lot of threads on this. I presume you have hw to hand in and don't know how to do it. Talking to your teacher is the best thing you can do.

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4. (Original post by RossB1702)
I see you've made a lot of threads on this. I presume you have hw to hand in and don't know how to do it. Talking to your teacher is the best thing you can do.

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im crashing and i have seen my teacher but she tells us to google it
5. (Original post by emmab13)
I would asume, if this is all the information you're given, that you're looking at molar ratios?
So A) 1 CH4 + 2 O2 = 1 CO2 + 2 H2O
So there is 3 moles of substance on each side? I hope that makes sense?? If you do the same for B, C & D you should be able to work out the answer easily enough I hope
thanks it did
6. (Original post by jackiemcnair)
im crashing and i have seen my teacher but she tells us to google it
What a terrible teacher. If this continues you should mention something to the head of year that she is unwilling to help. I mean thats what they get paid for, to help students lol.

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