When one scientist repeats another scientist's experiment, he or she is probably trying to a. show that he or she can do a better job b. practice how to do a new experiment c. confirm the work of the other scientist d. teach a new procedure to students

Determine the reaction and balance the following equations urgent due in the morning

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.

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?