Consider the reaction: 2hbr(g)-> h2(g)+br2(g)

a) express the rate of the reaction in terms of the change in concentration of each of the reactants and products.

b)in the first 25.0s of this reaction, the concentration of hbr dropped from 0.600m to 0.512m. calculate the average rate of the reaction.

c)if the volume of the reactino vessel in part b was 1.50l, what amount of br2(in moles) was formed during the first 15.0s of the reaciton?

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

Ithink that the answer is b