I think it’s a maybe hope this helps
I would say B.HS(aq)+NiSO4(aq)
Answer:
liquid and gas........................
Radioactive isotope, also called radioisotope, radionuclide, or radioactive nuclide, any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, and gamma rays.