What coefficient of O2 should be added so the number of atoms of oxygen is conserved on both sides of the

reaction equation?

O 3

O 5

07

O 10

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.