4. A sealed glass tube contains 2.25 g of copper and 3.32 g of sul- fur. The mass of the tube and its contents is 18.48 g. Upon heating, a reaction forms copper(II) sulfide (Cus). All of the copper reacts, but only 1.14 g of sulfur reacts, Predict what the mass of the tube and its contents will be after the reaction is completed. Explain your reasoning.​

D.na is the answer hope this

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na

The number of medals awarded to the track team during the season.