While camping you accidentally burn your marshmallows is this a physical or chemical change how can you tell

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?

If element x has 99 protons how many electrons does it have