Which of the following particles have the same mass. Proton, Neutron, Electron, None

What is the molar mass of potassium nitrate, kno3

Which of the following is a physical property flammability heat of combustion solubility and toxicity

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.