Exothermic Reactions with Steel Wool and Vinegar

What is an exothermic reaction?

• A reaction that neither absorbs nor releases energy

• A reaction that only releases light energy

• A reaction that releases more energy than it absorbs

• A reaction that absorbs more energy than it releases

Which of the following is NOT required for the experiment?

• A thermometer

• A Bunsen burner

• White vinegar

• Extra fine steel wool

What is the purpose of soaking steel wool in vinegar?

• To change the color of the steel wool

• To remove the protective coating from the steel

• To clean the steel wool

• To add a protective layer to the steel

What happens to the steel wool when it is exposed to oxygen after being soaked in vinegar?

• It dissolves completely

• It forms iron oxide or rust

• It becomes shiny and smooth

• It remains unchanged

What is the color change observed in the steel wool after the experiment?

• It turns black

• It turns green

• It turns blue

• It turns reddish brown