Which phrase describes one type of freshwater wetland

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

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.

What does an electron configuration for an atom relate to the atoms placement on the periodic table