Which of these would increase the heat generated and reduce the time it takes the ice cube to melt? 1.Increasing the size of the ice cube to be melted.

2.Increasing the amount of calcium chloride placed in the bag.

3.Increasing the size of the plastic bag.

4.Dropping the ice cube in the bag with the calcium chloride and water and then shaking the bag.

5.Putting more water and less calcium chloride in the bag.

6.Doubling the size of the plastic bag and doubling the amount of water and calcium chloride used.