How many moles of water are produced when 5 moles of hydrogen gas react with 2 moles of oxygen has? 2H2 + O2 + 2H20 (5 points)
2 moles of water
4 moles of water
5 moles of water
7 moles of water

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.