Completion Reaction Lab Report

Reactions that go to completion are a reaction where all of the reactants change into products, and a small trace of reactants may remain once the reaction is over. The product of a completion reaction will not significantly break down into the reactants. An example of a completion reaction would be oxygen gas and sulfur reacting with one another to form sulfur dioxide. Almost all of the sulfur will react with the oxygen gas if there is enough oxygen, and the sulfur dioxide will not break back down into oxygen gas and sulfur. Oppositely, with reversible reactions the products are able to re-form the reactants. The mixing of solutions of sodium sulfate and calcium chloride to form solid calcium sulfate is an example of a reversible reaction.