A

[205150314]

is A the initial concentration or given concentrations when plugging them into equations? or is it not even concentrations?

[205007651]

A represents the reactant molar concentration. If its [a]0 then it's the initial concentration.

[Ashley Alvarado 2C]

[A] is the concentration of the reactants and [A]0 is the initial concentration.

[rabiasumar2E]

[A]0 represents the initial concentration and [A] represents the concentration of the reactants!

[Frank He 4G]

Also note if you were ever confused that A naught is how we refer to [A]0, and that the little 0 symbol, or naught, does often mean the initial or starting point when it is in the lower position (whereas it would usually mean under standard conditions if it were in the upper position).

[Cole Woulbroun 1J]

In the Arrhenius equation, A does not represent concentrations. Instead, it is a reaction-based constant that describes the spatial requirements for the reaction to occur. If k is large, meaning that the reaction rate will be large, then A will also be large. A large A tells us that the spatial requirements for the reaction to occur are not demanding, whereas a small A tells us that they are.

[Brandon Valafar]

A represents the concentration of the reactants and A0 represents the initial concentration.

[kristi le 2F]

Also, A varies by reaction but is mostly independent of temperature.

[Niharika 1H]

A is the concentration, while A0 is the initial concentration.