If it was made for edibles it probably is, otherwise unless its a few months old very little is decarbed. You can heat it over a double boil and it will bubble lightly, when yhe bubbles slow like popcorn its done.
This process is removing the carboxyl group -cooh and it is being released as water vapor and co2 making up the bubble. The cannabinoids do not boil for another 100° or so
This is necessary for it to be psychoactive