Gina's group classified their mineral samples based on relative hardness. They considered the minerals that have a hardness of less than five as relatively soft, and those with a hardness of five or above as relatively hard. They showed their groupings in a table. A 2 column table with 3 rows. The first column is labeled Relatively soft minerals with entries: Bornite, Chalcopyrite, Goethite. Second column is labeled Relatively hard minerals with entries: Hematite, Pyrite, Pyrrhotite.
What does Gina’s group need to do to correct the information in the table?
Bornite needs to be switched with pyrite.
Pyrite needs to be switched with goethite.
Goethite needs to be switched with pyrrhotite.
Pyrrhotite needs to be switched with hematite.

Achemist at a pharmaceutical company is measuring equilibrium constants for reactions in which drug candidate molecules bind to a protein involved in cancer. the drug molecules bind the protein in a 1: 1 ratio to form a drug-protein complex. the protein concentration in aqueous solution at 25 ˚c is 1.74 x10-6 m . drug a is introduced into the protein solution at an initial concentration of 2.00 x10-6m. drug b is introduced into a separate, identical protein solution at an initial concentration of 2.00 x10-6m. at equilibrium, the drug a-protein solution has an a-protein complex concentration of 1.00 x10-6m, and the drug b solution has a b-protein complex concentration of 1.40 x10-6m.a. calculate the kc value for the a-protein binding reaction.b. calculate the kc value for the b-protein binding reaction.c. assuming that the drug that binds more strongly will be more effective, which drug is the better choice for further research?