Water

Question 1

hydrogen bond

Answer 1

Weak electrostatic force of attractions between the hydrogen bond on one molecule and an oxygen atom on another

Question 3

Metabolite

Answer 3

A substance made or used when the body breaks down food, drugs, chemicals or its own tissues. Water is a necessary reactant and often a byproduct.

Question 4

Solvent

Answer 4

When substances dissolve in water there negative positive and negative ions are kept apart. Ions are free to move around and react with molecules.

Question 5

Cohesion

Answer 5

Water molecules stick together- useful in transport- water travels Ina continuous column, drag dissolves substances with it

Question 6

Surface tension

Answer 6

Cohesive forces between liquid molecules, they stick together forming a surface film

Question 7

Specific heat capacity

Answer 7

The amount of heat per unit mass required to raise the temperature by one degree C

Question 8

Latent heat of vaporisation

Answer 8

The amount of energy needed to charge liquid to gas.

Question 9

Latent heat of fusion

Answer 9

Freezing water involves a lot of heat energy to be lost

Question 10

Density

Answer 10

Water is most dense at 4°C, ice floats