Answer:
To achieve stability
Explanation:
Chemical reactions happen so that the atoms of the elements involved in the chemical reaction will become stable and therefore achieve stability.
Answer:
sulfur promotes oxide-reduction reactions.
Explanation:
In stagnant water, some solutes tend to precipitate. When Sulfur precipitate and touch a metal, Sulfur is being reduced and the metal is oxidated. This depends of potential redox of each element.