Methane burns in oxygen to produce carbon dioxide and water. Which of the following represents
correct chemical formulas?
reliminary, unbalanced equation with the
A. CH4 + O2 - CO2 + H20
B. CH4 + CO2 + O2 + H2O
C. CO2 + H20 - CH4 + O2
D. CH4 - O2 + CO2 + H20