A chemist prepares a solution c/ sodium hyposullate (Na, S, O,) by measuring out 128. umol of sodium hyposulfate into a 250. mL volumetric Mask and filing the fask to the mark with water. Calculate the concentration in mol/L of the chemist's sodium hyposulfate solution. Round your answer to 3 significant digits.

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.