Exothermic hand warmers

Topics: Iron, Oxygen, Water Pages: 1 (81 words) Published: December 13, 2014
Exothermic hand warmers

Hand warmers work when you expose them to air. Once you have done this it causes a rusting inside the packet. The warmer contains water, cellulose, iron, vermiculite, activated carbon and salt. When exposed to air, these things cause the iron to rust at a slow rate which produces heat.

This is the word equation for the reaction:
Calcium monoxide + water >> calcium hydroxide + heat

This is the symbol equation for the reaction:
CaO + H2O >> Ca(OH)2 + heat 
Continue Reading

Please join StudyMode to read the full document

You May Also Find These Documents Helpful

  • The Hand Essay
  • Exothermic Reaction Essay
  • Hands to Hands Against Palm Essay
  • Essay on Doctor and Hand
  • Essay about Hand Wash
  • Hand Sanitizer Essay
  • Gifted Hands Essay
  • Hand Washing Essay

Become a StudyMode Member

Sign Up - It's Free