what happens when an ionic compound is dissolved in water?
the lattice is split up by the water molecules
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fullerene
form of the element carbon that can form a cage-like structure, based on hexagonal rings of carbon atoms
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what do the properties of a polymer depend on?
the monomers used to make it and the conditions of the reaction
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how does ethene form LD poly(ethene)?
using very high pressures and a trace of oxygen
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how does ethene form HD poly(ethene)?
using a catalyst and slightly raised pressures
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mole
the amount of substance in the relative atomic or formula mass of a substance in grams
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aqueous solution
the solution made by adding a soluble substance to water
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what does an acid + metal give?
salt + hydrogen
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what does and acid + base give?
salt + water
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precipitate
an insoluble solid formed by a reaction taking place in a solution
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electrolyte
substance broken down by electrolysis
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what is produced by the electrolysis of brine?
chlorine and hydrogen gas and sodium hydroxide solution
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reasons for electroplating (4)
to protect the metal beneath from corroding, to make it more attractive, to increase the hardness of a surface and its resistance to scratching, save money by using a thin layer of precious metal
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in electroplating what is used as the positive and negative electrode?
object to be plated - negative plating metal - positive
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Other cards in this set
Card 2
Front
fullerene
Back
form of the element carbon that can form a cage-like structure, based on hexagonal rings of carbon atoms
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