Remember all of the steps:
Steps to Figure out Energy Transfer
Step #1 - Tfinal= Thot + Tcold/2
Step #2- Change in Temperature: Tfinal - Tstarting -- You need to do this step twice! Once for the hot water and once for the cold water.
Step #3- Finding Calories: mass x change in temp - you may need to do this step twice--- Label is calories
Keep in mind - step one is linked to step 2 & step 2 is linked to step 3
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