Which of the following is the balanced equation for the combustion of carbon monoxide (CO) in oxygen?
a) CO + O2 -> CO2
b) 200 + O2-> 2002
c) CO + O2 -> C + CO2
d) CO + O2 -> H2O + CO2

The answer to the question is d

Idon't know hope someone you

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).