Whitening Kimberly’s Teeth The reaction of hydrogen peroxide, placed on Kimberl...

Whitening Kimberly’s Teeth

The reaction of hydrogen peroxide,

placed on Kimberly’s teeth produces water,

and oxygen gas. After Kimberly had her teeth cleaned and whitened, Jane recommended that Kimberly use a toothpaste containing tin(II) fluoride. Tooth enamel, which is composed of hydroxyapatite,

is strengthened when it reacts with fluoride ions to form fluoroapatite,

a. What reactant is oxidized and what reactant is reduced in

this reaction?

b. What is the oxidizing agent?

c. What is the reducing agent?

d. Write a balanced chemical equation for the reaction.