Which of the following describes a synthesis reaction?
A. One reactant breaks apart to form two products,
B. Two reactants rearrange atoms to form new products
C. One reactant changes phase from a liquid to a gas. D. Two reactants combine to form one product.

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18

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.

How do you determine the percent yield of a chemical reaction