Card Set Information
secton of earth's crust that slowly moves relative to other plates
very large land mass
the theory that explains how changes to the earth's surface occur at tectonic plate boudaries
rock formed by the solidification of molten magma or lava
particles of rock
rock formed from layers of sediment compressed over hundreds of years
the wearing away of rock or other surface matter such as soil
to be soluble in water
turn from a liquid to a gas, such as water evaporates to form water vapour
the actual problem
A base which is dissolved in water. Releases hydroxide ions and has a pH >7.
usually a weak organic acid with strongly coloured acid and base forms
blue for alkali, red for acid
a chemical compound formed from an acid when an H+ ion from the acid has been replaced by a metal ion or another positive ion, such as the ammonium ion.
substance which produces H+ ion when we add it to water
A chemical reaction that occurs when an acid is added to a base and a salt and water are formed.
A substance that produces ions when dissolved in water; its solution conducts electricity.
the chemichal change caused by passing an electric current through a compound which is either molten or in solution
the positive electrode, attracts chlorine
the point in an electrochemical cell at which reduction or oxidation occurs
a type of polymer (polyvinylchloride)
a substance used to soften plastics and increse flexibility
the loss of PVC into the environment
life cycle assessment
an analysis of the environmental impact of a product, including the production of raw materials, its manufacture, packing, transport, use and disposal