Definitions F5 Flashcards
Redox
A reaction where oxidation and reduction occurs simultaneously
Oxidising agent
A substance that oxidises another substance
Reducing agent
A substance that reduces another substance
Anode
Region where oxidation occurs
Cathode
Region where reduction occurs
Corrosion of metal
A redox reaction where the metal is oxidised spontaneously when the metal atom release electrons to form metal ion
Carbon Compound
Compound that contain element carbon
Hydrocarbon
Organic compound that contain only carbon and hydrogen
Organic compound
carbon compound that obtained from living things
Inorganic compound
Carbon compound that do not contain carbon to carbon bonds
Saturated hydrocarbon
Contain only single covalent bonds between carbon atoms
Unsaturated hydrocarbon
Contain at least one double or triple covalent bonds between carbon atoms
Homologous series
Groups of carbon compounds that have the following general characteristics
Isomers
Molecules that have the same molecular formula but different structural formula
Exothermic reaction
A reaction releases heat to surrounding
Endothermic reaction
A reaction absorbs heat from surrounding
Heat of precipitation
Heat change when one mole of precipitate is formed from their ions in an aqueous solution
Heat of displacement
Heat change when one mole of metal is displaced from its solution by a more electropositive metal
Heat of neutralisation
Heat change when one mole of water is formed from neutralisation of acid with an alkali
Heat of combustion
Heat energy released when 1 mole of fuel is burnt completely in excess oxygen
Polymer
Polymer is a long chain molecule that is made from a combination of many repeating basic units
Monomer
Small identical repeating units in polymer
Fuel value
Amount of heat energy released when one gram of fuel is completely burnt in excess oxygen
Natural polymer
Polymers that are naturally available and can be obtained from surroundings
Synthetic polymer
Polymers that are man made through chemical reaction in labotaries or factories
Latex
White colloidal solution containing rubber particles covered with negatively-charged protein membranes
Vulcanisation
process of producing rubber that is more elastic and with better quality through the production of cross-links between polymer chains.
Synthetic rubber
Synthetic polymer that is elastic in nature or elastomer polymer
