an advertisement for a commercial hand warmer claims that the hand warmer works because a chemical reaction in the hand warmer draws out the body's own natural heat causing a warming effect

"An advertisement for a commercial hand warmer claims that the hand warmer works because a chemical reaction in the hand warmer draws out the body's own natural heat causing a warming effect"

Explanation:

Hand warmer

Hand warmers are the pockets which produce heat, that you hold on the hands to warm your fingers. Niichi Matoba, the Japanese inventor created the first commercially manufactured hand warmer. Two types of hand warmers

A) Crystalline type

B) Air activated

C) Lighter

D) Battery

E) Charcoal

The chemicals produce heat from oxidizing iron into rust or iron oxide in the pockets. Each packet contains cellulose, iron, vermiculite activated carbon, water and salt. Hand warmer produces heat for 1 to 10 hrs. Releases heat in the crystallization process. Exothermic reaction to release heat in the chemical hand warmer. The hand warmer lasts only for 20 minutes to 2 hrs. it Is reusable. Supersaturated solution of sodium acetate in water is the common chemical used in this product. These temperature reach up to 163 degrees Fahrenheit.