In which of these would the reaction rate be the quickest

There is no explanation/details given about the question. How we are supposed to answer then?

The beginning of a reaction is the fastest

Explanation: The concentration of the reactants is higher at the beginning of the reaction and thus resulting more successful collisions between the reactant particles which pushes the reaction to proceed in forward direction. The more successful collisions, the faster the reaction will be.

kuchisake

kuchisake-onna (口裂け女, "slit mouth woman ") is a malevolent figure appearing in japanese ghost stories, possibly dating back to the edo period. she takes the form of a masked woman who approaches people and asks them if they believe she is pretty.

explanation:

the movement of aircraft through clouds can even cause lightning strikes. a single lightning event is a "flash", which is a complex, multi-stage explosively ejected.

explanation:

and the person below goggled it.

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