4. explain why 50 g of liquid water at 0°c heats-up more quickly than 50 g of an ice water mixture at 0°c under the same conditions.
5. how much energy (in kilocalories, kcal) is needed to melt 33.8 g of ice at 0.0°c?
6. how much energy (in kilocalories, kcal) is needed to warm 33.8 g of liquid water from 0.0°c to 37.0°c?

with all 3 numbers 4,5,6

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.