it is because it reacts readily with other compounds
Answer:
When 2 or more pure substances are mixed together they form a mixture. If the mixture has its different components mixed evenly within the substance it is a homogeneous mixture. Whereas if the mixture has its different components mixed unevenly within the substance it is a heterogeneous mixture
453.87 (whatever label you use, most highschools are different but i dont want to give you the wrong label!)