You determined that cr2o3 is the limiting reactant in the reaction below. if the reaction begins with85.00 grams of cr2o3 and157.0 grams of silicon, how many grams of the excess reactant will be used?

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.