Write the balanced chemical equations for the following reactions: . a.) the combination reaction that occurs when lithium metal and flourine gas react.. b.) the decomposition reaction that occurs when solid barium carbonate is heated (2 products). form: a solid and gas. c.) solid mercury (ii) sulfide decomposes into its component element when heated.. d.) the surface of aluminum metal undergoes combination reaction with oxygen in the air.. e.) si2h6 burns when exposed to air. (note that si is in the same group in the periodic table as c. the states of the reactants and products need not be givn