Determine the pH of a 0.18 M H2CO3 solution.  Carbonic acid is a diprotic acid whose Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10-11. (4 points)    

Early cancer takes on many forms and may resemble a variety of common lesions.

Which of the following is/are a must in regards to the at home bleaching technique?

The __________test is a painless, non-invasive procedure that can be performed in less than two minutes in the dental office.  The patient rinses with an acetic acid solution and a capsule is activated.  Normal epithelium will absorb the device’s illumination and appear dark, while abnormal epithelium will reflect it and appear bright white. It is used to assist the health care professional in the identification, evaluation and monitoring of oral mucosal abnormalities in patients at increased risk for oral cancer.

Using the Figure match the following with a LETTER: Ventricular repolarization   

The dental office may be the first place where recognition of an abnormality in the oral cavity is detected.

Using the Figure below, match the following with a LETTER: Universal Donor   

If given a normal laboratory report, what follow up would be indicated:

Using the Figure match the following with a LETTER: Purkinje fibers   

Using the Figure match the following with a LETTER: Point that represents the “dup” sound made by the heart.