please help with both! (and with correct sig figs)

How much heat, in joules and in calories, must be added to a 84.2g chromium block with a specific heat of 0.450J/gC t increase its temperature from 25C to its melting temperature of 1907C? cal 1 Points] OSGENCHEM1 5.1.P.008. How much would the temperature (in C ) of 280.g of water at 25C increase if 35.9kJ of heat were added? C