3. In an aqueous solution of potassium chloride,
the solute is
(1) Cl- only (2) K+ only (3) K+cl= (4) H2O

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

Can someone me with 3 and 4 plz. this is for masteries test.