Examlex
Calculate the amount of work done against an atmospheric pressure of 1.00 atm when 500.0 g of zinc dissolves in excess acid at 30.0°C.
Zn(s) + 2H+(aq) Zn2+(aq) + H2(g)
Colonoscopy
A medical procedure that uses a long, flexible, tubular instrument equipped with a camera and light to view the interior lining of the colon and rectum.
Proctoscopy
A medical procedure involving the examination of the rectum using a proctoscope, a slim, tube-like instrument.
Fecal Occult Blood Test
A diagnostic test that checks for hidden (occult) blood in the stool, a possible sign of colon cancer.
Firm Mass
A solid lump of tissue that can be felt under the skin, which may be benign or indicative of a more serious condition.
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