reusable hand warmers noa gur-arieh and eliane nevares Vancouver Talmud Torah High School Floor Location : M 167 P

we are going to present reusable hand warmers. the chemicals used are sodium, cupric, ammonium, zinc, and calcium acetates, with water. we will demonstrate the exothermic reaction when the hand warmers cryslaize. we will demonstrate using a hot plate and our materials.