CH₄ + 2O₂ —> CO₂ + 2H₂O
using this eqn, find the values through your data booklet and take bond break - bond form to find enthalpy change
Answer:
A methane molecule is made from one carbon atom and four hydrogen atoms. Carbon has a mass of 12.011 u and hydrogen has a mass of 1.008 u. This means that the mass of one methane molecule is 12.011 u + (4 × 1.008u), or 16.043 u. This means that one mole of methane has a mass of 16.043 grams.
メタン分子は、1つの炭素原子と4つの水素原子から作られています。炭素の質量は12.011uで、水素の質量は1.008uです。これは、1つのメタン分子の質量が12.011 u +(4×1.008u)、つまり16.043uであることを意味します。これは、1モルのメタンの質量が16.043グラムであることを意味します。^>^
I did this my 8th grade year but i got the answer from online. Try looking it up on there. i’m sorry i couldn’t help:(
1s2 2s2 2p6 3s2 3p6 = 18e- so it should be Argon (Ar)