IB Bio 2.2 Properties of water

What causes water to be polar?

• The oxygen atom has a stronger pull on the shared electrons

• The hydrogen atoms have a stronger pull on the shared electrons

• Hydrogen gives an electron to oxygen

• Oxygen gives an electron to hydrogen

Which option shows the correct dipoles?

• O = δ+ / H = δ-

• O = δ- / H = δ+

• O = δ+ / H = δ+

• O = δ- / H = δ-

What type of bonds are created by the attraction between the oxygen of one water molecule and the hydrogen of another?

• Covalent bonds

• Ionic bonds

• Hydrogen bonds

• Van der Waal's forces

Which property of water is described as 'water sticks to itself'?

• Adhesive

• Cohesive

• Thermal

• Solvent

Which property of water is described as 'polar substances dissolve in water'?

• Adhesive

• Cohesive

• Thermal

• Solvent

Which property of water is described as 'water heats up slower than other liquids'?

• Adhesive

• Cohesive

• Thermal

• Solvent

Which property of water is described as 'it takes a lot of energy for water to change state'?

• Adhesive

• Cohesive

• Thermal

• Solvent

Which property of water is described as 'water sticks to other stuff'?

• Adhesive

• Cohesive

• Thermal

• Solvent

Which properties of water are required for capillary action?

• Adhesive

• Cohesive

• Thermal

• Solvent

Which property of water is required for metabolism?