1a. How many calories of heat are required to convert 25.0 g of ice at 0.0\deg C to 25.0 g of steam at 100.0\deg C? 1b. What mass of steam at 100.0\deg C would have to be condensed to water at 100.0\deg C in order to heat 900.0 g of water from 15.0\deg C to 47\deg C? (please answer both question sowing each step so I can understand :) )