This blog will cover and explain the specification for Edexcel triple science course 2013 Chemistry. Hope it helps :)
you are a goddess
This comment has been removed by a blog administrator.
Nitrogen - 78.08%Oxygen - 20.95%Argon - 0.93%Carbon dioxide - 0.038%Neon - 0.0018%Helium - 0.0005%Krypton - 0.0001%Hydrogen - 0.00005%Xenon - 0.000009%
Nitrogen N2 78.084Oxygen O2 20.947Argon Ar 0.934Carbon dioxide CO2 0.0350Neon Ne 0.001818Helium He 0.000524Methane CH4 0.00017Krypton Kr 0.000114Hydrogen H2 0.000053Nitrous oxide N2O 0.000031Xenon Xe 0.0000087Ozone* O3 trace to 0.0008Carbon monoxide CO trace to 0.000025Sulfur dioxide SO2 trace to 0.00001Nitrogen dioxide NO2 trace to 0.000002Ammonia NH3 trace to 0.0000003
This was very useful. This blog is great, it has helped me on numerous occasions.