A metal object with mass of 20.2 g is heated to 97.0 °C and then transferred to an insulated container containing 91.5 g of water at 20.5 °C. The water temperature rises and the temperature of the metal object falls until they both reach the same final

temperature of 22.5 °C. What is the specific heat of this metal object? Assume that all the heat lost by the metal object is
absorbed by the water.

specific heat: cal/gal •°C

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.