Determine the limiting reactant when a
mixture of 5.00 × 103 g sio2 and 5.00 x
103 g carbon react. what is the
theoretical yield of silicon carbide?

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.