When making ice cream, the ingredients must be kept below 0.00 ˚C in an ice-salt bath. Assuming the salt dissolves completely, what mass, in g, of Na3PO4 would be needed to lower the melting point of 2.66 kg of ice to -5.39 ˚C? You may ignore ion pairing. Na3PO4 = 163.94 g/mol, Kf = 1.86 ˚C/m for water

Note: Do not use scientific notation or units in your response. Sig figs will not be graded in this question, enter your response to four decimal places.

The characteristic 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 and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.