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 are formed due to sharing of electrons between two non-metals. Group: Ionic Compounds are formed between metal and non-mental. Molecular Compounds are formed when two non-metals chemically combine: Bond: Ionic Compound is formed due to electrostatic force of attraction known as Ionic bond. Molecular Compounds are formed due to covalent bond between elements.
Molecular shapes and VSEPR theory. There is a sharp distinction between ionic and covalent bonds when the geometric arrangements of atoms in compounds are considered. In essence, ionic bonding is nondirectional, whereas covalent bonding is directional.