Calcium chloride can be used to create a hot pack when dissolved in water.  What is the molecular formula for Calcium chloride?  Use the periodic table below.  Calcium has the symbol Ca, Chlorine has the symbol Cl and remember to use the text editor for subscripts or superscripts as necessary.   

What process is occurring?

The enzyme HIV protease is responsible for activating proteins expressed by the Human Immunodifficiency Virus (HIV) which then attack the host immune system.  This protein has been the target of highly successful drug development in order to block HIV activity.  The image below shows a close-up of the active site of HIV protease bound to one of these drugs.  This drug is designed to tightly bind within the active site through intermolecular interactions, thus blocking the natural substrate from binding.  Which type of inhibitor does this drug represent?   

Below is an image of GLUT1 (Glucose Transport Protein 1).  GLUT1 enables glucose to passively diffuse into the cell through the membrane.  Passive diffusion refers to movement of a molecule from an area of [high] concentration to an area of [low] concentration across a membrane.   

Ampicillin is an antibiotic used to treat bacterial infections.  A doctor orders that a patient be given 0.150 g ampicillin.  The ampicillin concentration in the liquid suspension available is 200. mg/5.00 mL.  How many mL should the patient be given?

Match each molecule with its correct intermolecular interaction: A. CH3OH B. CH3CH2CHO C. NH3 D. CH3CH2CH2CH2CH3

The enzyme alpha-amylase catalyzes the first step in the process of breaking food down into molecules that can be utilized for energy in the body.  Alpha-amylase is primarily found in the

Order the following molecules by increasing boiling point (lowest boiling point

People who are diagnosed with lactose intolerance lack sufficient amounts of the enzyme lactase which is responsible for breaking down lactose.  If lactose is not able to be broken down, it will not be able to diffuse into the blood from the intestine and as a result can create significant abdominal discomfort.  Lactose, shown below, represents which type of sugar?   

Gastric Acid, also known as stomach acid, is a very strong digestive fluid composed primarily of hydrochloric acid (HCl).  If the [H3O+] of gastric acid is 0.063 M, what is the pH of this solution?  Your answer should have 2 significant figures.