Lab

__**Sixto:**__ I think salt is used because salt in water has a lower freezing than water without the salt. The water has to reach a temperature of -10 degrees Celsius in order for it to freeze. Salt has the colligative property to lower the freezing point of the solution. It was once believed that a mixture of of salt and ice created the lowest temperature that could be reached by humans so that's probably why were gonna use salt tomorrow. __**Eric**__ i think salt is added to the ice cream ingredients to increase the freezing point depression of the water and the colligative properties of the ice will change. Also, the freezing point of the ice cream will decrease because of the salt, causing the ice cream to remain cool without not melt. MITCHELL- Since salt absorbs the heat and is soluble, the ice cream not only stays colder but it increases the melting point of the ice cream. basically the salt gives it an endothermic reaction which means that the molecules are losing heat or releasing energy. the salt does not contribute to its flavor.
 * Tenzin:** Salt is added to the ice surrounding the ice-cream ingredients in order to increase the freezing point depression of the water. Thus changing the Colligative properties of the ice. This will allow the ice-cream ingredients, surrounded by the ice cold salt water, to remain cool and not melt. This is a good example of an endothermic reaction since it involves the dissolving of ammonium nitrate in water. Also when salt is added into the water the ionic compounds split into smaller molecules. This process could also be called dissociation.
 * __jasmin -salt is added to the ice cream because it is soluble.It increases the freezing point.The__** salt also absorbs the heat the is sorounding the icecream.The salt in the ice cream change the coliigative properties of the ice cream from staying hot because of the abosorbing of heat by the salt.