UNIT 1 - properties of water

Question 1

what are the main properties of water?

Answer 1

high specific heat capacity, universal solvent, cohesive and adhesive, and density

Question 2

what is the property high specific heat capacity in water?

Answer 2

changing the state of matter requires change in thermal energy, temp of water changes slower than other liquids

Question 3

what is the property universal solvent in water?

Answer 3

charged areas of the water molecules act together to dissolve other polar or ionic solutes

Question 4

what is the property cohesive in water?

Answer 4

the tendency for water molecules to stick together

Question 5

what is the property adhesive in water?

Answer 5

tendency of water molecules to bond with other polar/charged substances

Question 6

what is the property of density in water?

Answer 6

the tendency for objects to float or sink on the surface of water due to how close the water molecules are

Question 7

how much of the human body is made up of water?

Answer 7

60 - 70%

Question 8

what is the role of water in the human body?

Answer 8

transporting materials around the body, regulates temp, cushions and protects organs,