Chemistry Key Words

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Alkane
Single and Saturated (SS)
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Alkene
Double and Unsaturated
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Atmosphere
mixture of gases above the lithosphere (nitrogen and oxygen mainly)
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Atomic number
the number of protons found in nucleus of an atom
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Background radiation
Ionising radiation that is present at all times at a low level
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Carbon-14
radioactive isotype of Carbon
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Catalytic converters
reduce Nitrogen Oxide and unburnt hydrocarbons in exhaust fumes
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Cathode
a negative electrode
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Compound
2 or more elements chemically joined eg. H2O
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Chromatography
method for splitting substances to check purity and see compounds
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Cracking
process of small hydrocarbons from large hydrocarbons
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Current
flow of electrons in an electric circuit
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Degassing
gas coming from volcanoes
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Delocalised electrons
electrons free to move away from a group of ions
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Dibromo compound
colourless compound from an alkene and bromine solution
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Distillation
process of evaporation the condensation
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Dry cleaning
cleaning without water
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Electrolyte
the liquid involved in electrolysis
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Electrons
negative particles within an atom
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Endothermic reaction
chemical reaction where heat is taken IN
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Equilibrium
forward and backwards reaction are happening at the same rate
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Essential Elements
NKP- plant growth
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Exothermic reaction
chemical reaction where heat is given OUT
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Galvanising
coating another metal with zinc
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Hydrated Iron (III) oxide
rust
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Halogens
reactive non-metals in group 7
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Ionises
adds/removes electrons leaving it charged
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Isotypes
same number of protons but not of neutrons
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Malleable
bendable
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Mass
the amount of an object in kg
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Matal halide
a compound of a halogen and a metal
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Molar mass
the relative formula mass in grams
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Nanotube
carbon atoms formed into a very tiny tube
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Neutrons
doesn't have a charge
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Oxidation
gains Oxygen and/or lose electrons
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Polymer
a number of short chained molecules joined to make a longer one
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Precipitate
solid formed in a solution during a chemical reaction
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Precipitate reaction
test for metal ions where a solid is formed
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Protons
positive particles
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Radical
a spare electron which is very reactive
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Redox
simultaneous process of reduction and oxidation
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Reduction
loses oxygen and/or gains electrons
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Relative Atomic Mass
the mass of an atom compared to a twelth of a carbon atom
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Resistance
measurement of difficulty for electric current to flow
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Sacrificial protection
using a more reactive metal to protect a less reactive metal
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Saponification
process of soap making using fat and sodium hydroxide
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Smart alloy
alloy which will return to previous shape
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Subduction
where one plate sinks below another (oceanic plate sinks)
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Titration
an accurate method for neutralisation
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Transition element
part of the middle section of periodic table
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Other cards in this set

Card 2

Front

Double and Unsaturated

Back

Alkene

Card 3

Front

mixture of gases above the lithosphere (nitrogen and oxygen mainly)

Back

Preview of the back of card 3

Card 4

Front

the number of protons found in nucleus of an atom

Back

Preview of the back of card 4

Card 5

Front

Ionising radiation that is present at all times at a low level

Back

Preview of the back of card 5
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