Given 76.4 g of C2H3Br3 and 49.1 g of O2, determine which compound is the limiting reactant given the following balanced chemical equation:
4 C2H3Br3 + 11 O2 → 8 CO2 + 6 H2O + 6 Br2

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

What are the options? physical property can be color, smell, opacity, viscosity, density, infra red spectrum, melting and boiling points, attraction and repulson to magnets, etc.

Ibelieve it is b. proton.hope my answer has you : )