3.1 Elements & Water
O
Chemical symbol for oxygen.
Cohesion
Water molecules "stick together" due to their hydrogen bonds.
Ion
Charged atom due to gaining or losing electrons.
Hydrophilic
Charged or polar molecules such as salts, sugars, amino acids dissolve readily in water, the are ...
C
Chemical symbol for carbon.
Atom
The smallest particle of matter to have clear chemical properties.
Element
A substance that is made up of only one kind of atom.
Coolant
As water evaporates from the surface of the skin, it removes a large quantity of heat, making it a very good ...
Cohesion
Attraction of 'like' molecules.
Adhesion
Attraction of 'unlike' molecules.
H
Chemical symbol for hydrogen.
N
Chemical symbol for nitrogen.
Calcium
Co-factor is some enzymes.
Iron
Component of cytochromes
Sulphur
Element found in SOME amino acids.
Iron
Essential element for the transport of oxygen in blood.
Calcium
Important component of bones.
Iron
Important element for formation of haemoglobin.
Phosphorous
Important element of ATP.
Sodium
Important in membrane function and nerve impulses.
Solvent
In a solution, a substance called the ............... dissolves in another substance called the solute.
Positive
In water molecules, the hydrogen atoms are slightly ...
Negative
In water molecules, the oxygen atom is slightly ...
Polarity
Many substances dissolve in water, due to its ...
Polar
Molecules which have an unequal distribution of charge, are said to be ...
Water
Name this molecule.
Phosphate
Phosphorus is most often used in living organisms in the form of ...
ionic
Type of strong bond created when an atom gives up one or more of its electrons to another to form two oppositely charged ions. The oppositely charged ions attract each other.
Covalent
Type of strong bonding producing molecules due to sharing of electrons.
High specific heat capacity
Water can absorb or release a relatively large amount of heat with only a modest change in its own temperature due to its ...
Specific Heat Capacity
Water does not change temperature very easily, due to its high ...
Hydrogen
Water has a high latent heat of vapourisation due to its ...................... bonds.
Coolant
Water has a high latent heat of vapourisation → it requires a large amount of heat to change from a liquid to a gas. This makes it a very good ...
Solvet
Water is a very good .......................... Charged or polar molecules such as salts, sugars, amino acids dissolve readily in water.
Latent heat of vaporization
Water requires a lot of energy to change state from a liquid into a gas, due to its ...
Latent heat of fusion
Water requires a lot of heat to change state from a solid to a liquid, due to its ...
