2. escribe the function of the esophagus? A. Absorbed the food in its wall. B. It tears and grinds the food into pieces C. Collect undigested food and form feces D. Narrow tube that allows the food to push down to the stomach 3 How is the stomach work together in the digestive system?

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum

Chemistry worksheet - i am not sure what they are asking for exactly?