Try these examples
n100.0 g of water-cools from 30.10°C to 25.05 °C. How much heat is released?
n100.0 g of water at 25.00 °C absorbs 100 J of heat. What is its final temperature?
nA stone weighing 2.0 g absorbs 5.0 J of heat and warms by 3.0 °C. What is the specific heat of the stone? What is the heat capacity of the stone?