Ib Chemistry Sl - Option C Definitions (Chemistry In Industry And Technology)

Rain with pH less than 5

Places on catalyst's surface where reactant molecules adsorb

Polymer made from alkenes and alkene derivates

Softening heat treatment method

Isomer of polypropene with randomly orientated methyl groups

Principal aluminium ore

Extract iron from its ores

Deactivation of catalyst by reaction with contaminants

Cracking reaction using catalysts such as zeolite

Molecules aligned along a main axis in layers, molecule orientation for each layer is slightly different, twists give rise to colour

Coal heated to drive off volatile components

Polymer formed from two different monomers

Larger hydrocarbons are broken down into smaller, less saturated hydrocarbons

Substance added to alumina to lower the melting point of the electrolyte during aluminium production

Conductive material, site of oxidation or reduction

Substance that conducts electricity if molten or dissolved

Coal, oil and natural gas

Separation of mixture by heating and vaporization and subsequent cooling and condensation

Reactive substance with unpaired electron

Voltaic cell with at least one gaseous reactant supplied continuosly

Allotropes of carbon

iron ore, Fe2O3

Cell used to extract aluminium from alumina

Measure of how well a material responds to heat treatment (using heat to soften or harden metal without melting it)

Pure crystals

Isomer of polypropene with methyl groups arranged on the same side of the assymmetrical carbon

Liquid-crystal substance that can be woven into fibres; very tough

Rechargeable cell used in cars

Substance that flows like a liquid but has some crystalline order like a solid

Rechargeable cell containing lithium ions

Liquid crystal that only exists in solution

Iron ore, Fe3O4

Chlor-alkali cell in which mercury is used as an electrode

Field of technology dealing with devices in 1nm - 100nm size range

Allotrope of carbon with a closed cyllindrical structure

Liquid crystal that has order in only one direction

Reachargeable cell used in laptops and mobile phones

Pollutant oxides from nitrogen

Tiny, solid pollutant particles suspended in air

Organic compounds in which all hydrogens have been replaced by fluorine; potent greenhouse gases

Chemical derived from petroleum

Liquid or gaseous hydrocarbons used to make intermediate or primary chemicals

Another name for crude oil

Impure iron produced in the blast furnace; contains about 4% carbon

Chemicals added to make polymers softer and more flexible

Another name for Hall-Heroult cell

A non-rechargeable battery

Effects that are only noticeable on the atomic scale, not in the macro world

Fast cooling of heated metal by plunging it into a liquid

Substance able to withstand extremely high temperatures

Specialized microscope used to visualize and manipulate atoms

Rechargeable battery

Iron ore, FeCO3

Silica-rich waste from smelting process

State in which molecules are arranged along the major axis and in layers

Extraction of metals using heat, resulting in two layers

Type of cracking which uses steam to split the molecules

Isomer of polypropene with methyl groups alternating on the either side of assymmetrical carbon

Softening type of metal heat treatment

Type of cracking reaction in which heat is used to split molecules

Substance that shows liquid-crystal properties in a pure state

Small holes at the bottom of blast furnace through which blasts of hot air are injected

Liquid crystal with layers twisted by regular increments, used in liquid-crystal displays

Volatile organic compounds

Porous type of catalyst used in cracking reactions

Organometallic complexes used to make HDPE