What happens in the test tube in terms of the redox reaction of zinc and copper

What happens to the atomic radius when an elctron is lost

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

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.