Which statement correctly describes the relationship between reactant and yield? the actual yield is calculated from the amount of the excess reactant present. the actual yield is calculated from the amount of the limiting reactant present. the theoretical yield is calculated from the amount of the excess reactant present. the theoretical yield is calculated from the amount of the limiting reactant present.

The characteristic 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 and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2

How much would you need to weigh out in order to have 0.2moles of magnesium atoms?