bonds result from the transfer of electrons from one element to another. are discrete groups of atoms that are held together by covalent bonds. are negatively charged ions with more than . ion is an example of a polyatomic cation. ions are cations or anions that contains more than one atom.

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen

List four observations that indicate that a chemical reaction may be taking place

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.