1. The problem statement, all variables and given/known data What mass of steam at 100 Celcius must be added to 1.00 kg of ice at 0 Celcius to yield liquid water at 20 Celcius. 2. Relevant equations Q = mL Q = mc(deltaT) change in energy = 0 3. The attempt at a solution Ice m= 1.00 c = 2100 T1 = 0 Tf = L = 333 water m= c = 4190 T1 = Tf= 20 Steam m = ???? c = 2010 L = 2260 T1 = 100 Tf = I am stil missing some of the needed information and i am not sure how to organize my equations.