1. The problem statement, all variables and given/known data Which salt will make the best hot pack when combined with water? Independent variable: Salt Dependent variable: Temperature In the experiment I have a 50 ml beaker of water and I measure the initial temperature of the water. It was 24.5 degrees Celsius. I then add 10g of Sodium Chloride (table salt) to the same beaker. Now my question is will the temperature increase, decrease, or stay the same as the initial temperature of water. I also did the same for two other salts: Ammonium Chloride and Calcium Chloride. The temperature of the water was 25 degrees Celsius for both of these salts. When I add the Ammonium Chloride and Calcium Chloride will the temperature stay the same, increase, or decrease? Any help would be appreciated.