Review this chemical equation:
O2 + CH4--- CO2 + H2O
Which answer best explains what must be done to make this equation comply with the law of conservation of mass?

Question

Review this chemical equation:
O2 + CH4---> CO2 + H2O
Which answer best explains what must be done to make this equation comply with the law of conservation of mass?

anonymous · Answer

A. You must add a coefficient of 2 to the oxygen molecule on the left and a coefficient of 2 to the water molecule on the right.
B. You must add a coefficient of 2 to the methane (CH4) molecule on the left and a coefficient of 2 to the carbon molecule on the right.
C. You must add a coefficient of 4 to the oxygen molecule on the left and a coefficient of 4 to the water molecule on the right.
D. You must add a coefficient of 2 to the oxygen molecule on the left and nothing to the molecules on the right.

anonymous · Answer

A