15 which of the following statements is true about 22.4 l each of hydrogen ammonia and uranium dioxide gas if the temperature and pressure are the same for all the gases? uranium dioxide gas has the most number of molecules oxygen gas has the most number of molecules hydrogen gas has the least number of molecules the gases have the same number of molecules

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

High-energy and unstable.