the chemicals inside react to create the cold
no
The reaction is endothermic.
Mix critic acid and sodium and bicarbonate
Both types (hot and cold) of packs can be easily transported and used in travel. They do not take up a lot of room in a bag or box. If someone were to get hurt, a cold pack can quickly be used to help them. The same goes with a hot pack.
Usually food it packed in Styrofoam to keep it cold (or warm)
cold pack contains cold stuff like ice, hot pack stuuf like fire
You would have to have an Eacthomatdid reaction of chemcal chance to change a cold pack to a hot pack.
A cold pack is to make lumps go down and a heat pack is for when your sick.
Ammonium nitrate and water are in separate compartments in the cold pack. To activate the cold pack, you break the compartments in the pack so the ammonium nitrate and water mix. The ammonium nitrate absorbs all of the heat, making the water ice cold.
No.
The pack was going to kill Bella and Renesmee.
the wolf pack in La Push doesn't have a name they are simply just 'the pack' to the boys.
Yes. It is possible to be poisoned by an ice pack.
Five in New moon but as the pack gets bigger in eclipseand breaking dawn when the pack gets to 11 wolves
Just below freezing is ideal
Nortech Laboratories Inc. www.nortechlabs.com Hot Cold Therapy Pack: Therma-Kool
its an endothermic reaction