You need to find the abundance. Then, multiply the abundance by 100, and add that to the mass for each isotope. Basically, for each isotope, take the percentage abundance and add it to the mass. Multiply each calculation of these together to get your average atomic mass,
First step in answering the question is to establish a balanced chemical reaction equation. More specifically, a combustion chemical equation.
CH4 + 2O2 ---> CO2 + 2H20
Then using dimension analysis:
It shows mass is not created nor lost but re arranged
Answer:
adding coefficient
Explanation:
To balance a chemical equation we have to place coefficients as needed in front of the symbols or formulas so the same number of each type of atom occurs in both reactants and products