Picture. how many molecules of the excess reactant are left?
what is the excess reactant?

How many moles of al3+ ions are in 1.25 moles of al2o3

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.

Which property of water causes water drops to bead on a freshly waxed car?