A1.1 Water

Question 1

Cohesion

Answer 1

Water molecules are attracted to one another due to intermolecular H bonds

Question 2

Charge of Oxygen (H20)

Answer 2

Slightly negative

Question 3

Charge of Hydrogen (H20)

Answer 3

Slightly positive

Question 4

Adhesion

Answer 4

Water molecules are attracted to polar substances

Question 5

Hydrophilic

Answer 5

Substances that dissolve in water

Question 6

Hydrophobic

Answer 6

Substances that do not dissolve in water

Question 7

Bouyancy

Answer 7

Density of water allows less dense objects to float

Question 8

Viscosity

Answer 8

Resistance to flow (water has a low viscosity)

Question 9

Thermal Conductivity

Answer 9

Ability of substance to transfer heat through itself (water has a high TC)

Question 10

Specific heat capacity

Answer 10

Amount of energy required to raise a 1g of substance by 1*C (water has a high SHC)

Question 11

Origin of water

Answer 11

Delivered by asteroids, retained by the goldilocks zone & gravity

Question 12

Latent heat evaporation

Answer 12

energy required to turn liquid water into gas