Run a greener race with Tough enoughâ¢ biodegradable race bibs. Introducing a new line of tear and water resistant race bibs printed on a biodegradable paper laminate.Rainbow Racing Systemâs Tough e noughâ¢ race bibs are made of paper with an inner layer of plastic providing the needed durability of synthetic papers such as Tyvek.un a greener race with Tough enoughâ¢ biodegradable race bibs. Introducing a new line of tear and water resistant race bibs printed on a biodegradable paper laminate.
Molecular Compounds have low melting and boiling point as compare to the Ionic Compounds. Molecular Compounds can be in any state, solid, liquid or gas at room temperature, whereas Ionic Compounds are always in solid state with forming crystalline appearance.
Electrical conductivity of the compound in liquid form. Ionic compounds conduct electricity well when melted; metallic solids do as well. Covalent molecular compounds do not, because they usually don't transfer electrons unless they react. Hardness. Molecular solids are usually much softer than ionic materials.