Substances in chemistry may be referred to as: A) Solutions
B) Elements
C) Compounds
D) A and C only
E) B and C only
F) A, B, &C

At element makes up all organic compounds?

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.

If an atom has 12 protons and 13 neutrons