One component of gasoline is 1,2-dimethylbenzene, shown below. When this molecule undergoes complete combustion, the ratio of Oz molecules required to react with one mole of 1,2-dimethylbenzene is?

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.