Question

types of reactions
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considering the activity series given for nonmetals, what is the result of the below reaction? use the activity series provided. f > cl > br > i
$\text{br}_2 + \text{naf}
ightarrow$
no reaction
$\text{na} + \text{fbr}_2$
$\text{nabr} + \text{f}_2$
$\text{na}_2\text{f} + \text{br}_2$

Explanation:

Step1: Compare nonmetal reactivity

The activity series is $\text{F} > \text{Cl} > \text{Br} > \text{I}$. A nonmetal can only displace a less reactive nonmetal from its salt.

Step2: Analyze the reaction

$\text{Br}_2$ is less reactive than $\text{F}$, so it cannot displace $\text{F}$ from $\text{NaF}$.

Answer:

no reaction