A compound contains only nitrogen and oxygen. It is 30.5% N by mass. The molar mass of the compound is 92 g/mole. [N = 14; O= 16.0]
Determine the empirical formula of the compound. [1]
Determine the molecular formula of the compound

500bc indiais the answer.

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