Chemistry

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  • Created by: EllieSump
  • Created on: 29-05-14 16:03
mass number
the number of protons plus neutrons in the nucleus of an atom
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nucleus
the very small, dense, central part of an atom which contains protons and neutrons
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neutron
a particle found in the neucleus of an atom. It is electrically neutral, carrying no charge
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compound
the substance made when 2 or more elements are chemically bonded together
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electron
a particle with a negative charge. The electron orbits the neucleus in atoms/ions
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proton
a positive particle found inside the nucleus of the atom
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shell (or energy level)
an area in an atom, around the neucleus where electrons are found
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covalent bond
the attraction between 2 atoms that share 1 or more pairs of electrons
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ionic bond
the electrostatic force between positively and negatively charged ions
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calcium carbonate
the main compound found in limestone, a solid
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thermal decomposition
the breakdown of a compound by heat
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lime water
the common name for calcium hydroxide solution
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calcium oxide
made when limestone is heated
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calcium hydroxide
when water is reacted with calcium oxide
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quarry
a hole in the ground where resources are blasted out to be used
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ore
rock which contains enough metal to be economically worthwhile to extract the metal
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reduction
the removal of oxygen from a compound
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electrolysis
the breakdown of a substance containing ions by electricity
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blast furnace
the huge reaction vessels used to extract iron from its ore
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alloy
a metal that is mixed with other elements
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smelting
heating a metal ore in order to extract the metal
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transition metals
elements which are in the central part of the periodic table. They have typically metalic properties and form coloured compounds
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phytomining
the burning of plants to extract the metal they took in whilst growing from the soil
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distilation
separation of a liquid from a mixture by evaporation followed by condensation
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alkAnes
a saturated hydrocarbon which has no reaction with bromine water
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alkEne
unsaturated hydrocarbon which contains a carbon-carbon double bond ajnd turns bromine water colourless
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fractional distilation
a way to separate liquids from a mixture of liquids by boiling the substances off at different temperatures, then condensing and collecting the liquids
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oxidised
a reaction where oxygen is added to a sunstance (or when electrons are lost from a substance)
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particulates
small solid particle given off from motor vehicles as a result of incomplete combustion of fuel
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global dimming
the reflection of sunlight by tiny solid particles in the air
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cracking
the reaction used in the oil industry to break down large hydrocarbons into smaller, more useful ones. This occurs when the hydrocarbon vapour os either passed over a hot catalyst or mixed with steam and heated to a high temperature
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double bond
a covalent bond made by the sharing of two pairs of electrons
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monomer
small reactive molecules that react to make one large molecule called a polymer
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polymer
a substance made from monomers which create polymers when they react. The repeating units create a polymer, eg poly(ethene)
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biodegradable
materials that can be broken down by microorganisms
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fermentation
the reaction where enzymes in yeast turn yeast turn glucose into ethanol and carbon dioxide
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emulsion
a mix of liquids that don't dissolve in each other
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emulsifier
a substance which helps keeps imiscible liquids mixed so they don't separte into layers
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tectonic plates
the huge slabs of rock that make up the earths crust
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convection currents
the circular motion of matter causes by heating in fluids
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Other cards in this set

Card 2

Front

the very small, dense, central part of an atom which contains protons and neutrons

Back

nucleus

Card 3

Front

a particle found in the neucleus of an atom. It is electrically neutral, carrying no charge

Back

Preview of the back of card 3

Card 4

Front

the substance made when 2 or more elements are chemically bonded together

Back

Preview of the back of card 4

Card 5

Front

a particle with a negative charge. The electron orbits the neucleus in atoms/ions

Back

Preview of the back of card 5
View more cards

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