chemistry chemical changes

acid
when disolved in water has a PH of less than 7. Acids are proton H+ doners.
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alkali
its solution has a PH of more than 7
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base
the oxide, hydroxide or carbonate of a metal that will react with an acid to form a salt and water. are proton H+ acseptors
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displacement reaction
a reaction in which a more reactive element takes the place of a less reactive elemant in its compound or in a soluton
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electrolosis
the break down of a substance contaning ions usion electrisity.
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equlibrium
the point in a reversable reation at which the forwawrd and backward rate of a reaction are the same. so the amount of the reacting substances remane constante.
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half equation
an equation that shows only the reduction or oxidation
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ionic equation
an equation that shows only those ions or attoms that change in a chemical reaction
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metal ore
a rock that contains enoughth of a a metal or metal compound to be worth extracting
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neutral
a solution with a PH of 7 whcih. or something which has no overall charge.
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neutralisation
the chemical reaction of an acid with a base where a salt and water are formed. if the base is a carbonate or a hydro carbonate carbon dioxide is formed
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oxydation
where oxygen is added to a substance or when electrons are lost from a substance
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PH
a number which shows how acidic or alkaline a solution is
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reduction
where oxygen is lost or electrons are gained
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strong acids
compleatly ionise in aquarious solution
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Other cards in this set

Card 2

Front

alkali

Back

its solution has a PH of more than 7

Card 3

Front

base

Back

Preview of the front of card 3

Card 4

Front

displacement reaction

Back

Preview of the front of card 4

Card 5

Front

electrolosis

Back

Preview of the front of card 5
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