Answer
You need no formulas for this question
Work Step by Step
This question deals with classifying substances as pure substances, a heterogeneous mixture, or a homogeneous mixture. The specific substance is iodine crystals. Iodine crystals are a pure substance, they are made up entirely of one element, iodine. The fact that they are chemically same throughout the entire thing means that iodine crystals are a pure substance.
