A pure substance is a material that has a constant composition, and has the same properties throughout the sample. pure substances in chemical equations form predictable products. In chemistry, a pure substance has only one type of atom , molecule, or compound.
Materials that are pure substance is for Chemical Elements tin, sulfur, diamond is pure substance for Compounds sugar, water, baking soda is pure substance and for Crystals salt, protein crystals, copper sulfate. crystals is pure substance!
