Type the letter of the correct answer in the blank space. The image shows the combustion of methane. Which equation represents this chemical reaction? Screenshot 2021-09-29 092155. Png A. CH4 O2 → CO2 H2O B. 2CH4 2O2 → CO2 2H2O C. CH4 2O2 → 2CO2 H2O D. CH4 O2 → 2CO2 2 H2O E. CH4 2O2 → CO2 2H2O.

CH4 + 2O2 → CO2 + 2H2O

Explanation:

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally