Water

Question 1

How do hydrogen molecules form between water molecules ?

Answer 1

Water is polar, oxygen is delta negative while hydrogen is delta positive
Intermolecular forces that start to form between one positive hydrogen molecule and one negative oxygen molecule on an adjacent molecule

Question 2

7 properties ot water

Answer 2

High latent heat vaporisation
High specific heat capacity
Metabolitw/solvent
High surface tension
Incomprehensible
Cohesion between molecules

Question 3

Explain why ice is denser than water

Answer 3

Ice is less dense than water because h bonds are in fixed positions away from each other , this allows water to be insulated and be a habitat for aquatic animals

Question 4

Why is high surface tension important

Answer 4

This allows less water loss due to transpiration in plants

Water rises unusually high in narrow tubes so it allows less press on the roots

Question 5

Why is water an important solvent

Answer 5

Dissolves sbd transports charged particles in intra and extracellular reactions e.g DNA synthesis

Question 6

Why is high specific heat capacity and high latent heat vaporisation important for organisms

Answer 6

Acts as a temperature buffer so rluctuations in core temperature doesnt affect enzyme activity

Provides a coolint effect when water evaporates from skin due to sweating