I need to know what occupied vs full means for chemistry

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

Reaction rate depends on how many molecules are coming into contact with each other with enough energy to react. increasing the temperature of the reactants will increase -

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?