Electrons are exchanged in an ionic bond. Metals valence electrons to form cations. Nonmetals valence electrons to form In a covalent (molecular) bond Valence electrons are between two or more nometals, not exchanged

What must occur for air masses to form fronts

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?