👉 A weakener is a type of material that is used to strengthen or protect an object from damage caused by other materials. Examples of weakeners include steel, aluminum, and concrete. They are often used in construction projects to create stronger structures or to prevent corrosion. In the context of chemistry, a weakener can be a substance that is added to a reaction mixture to increase its activity or to neutralize the effects of an acid or base. It is typically used when the reactants are not strong