Can somebody tell me if I got all these right and I got one wrong please tell me why and correct me I can’t fail this

How many molecules are found in 1.32 mol of nacl?

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.

May someone me with these science questions