Acids, Bases and Salts

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  • Created by: owen1234
  • Created on: 04-12-15 11:46
pH scale
A measure of the acidity or alkalinity of a solution. pH 1 is strongly acidic pH 7 is neutral and pH 14 is stronly alkaline.
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Acidic
Having the properties of an acid
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Alkaline
Having the properties of an alkali
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Indicator
A substance that changes colour on its pH
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Calibrated
Marked with a scale, so that the readings can be taken
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Resolution
The smallest change in that value that an instrument can detect
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Bases
A compound, usually a metal oxide or metal hydroxide, that reacts with an acid to neutrilise it
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Soluble
Able to dissolve in a particular solvent, usually water
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Alkali
A base that dissolves in water to form hydroxide ions and give a solution of pH greater than 7
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Hydroxide ions
An negatively charged ion made up of hydrogen atom and an oxygen atom.
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Strong alkalis
An alkali that splits completely into ions in solution, producing a high concentration of hydroxide ions.
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Weak alkali
An alkali that does not completely split into its component ions in solution, and produces a low concentration of hydroxide ions.
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Hydrogen ions
A hydrogen atom without its electron; a proton.
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Strong acids
An acid that splits completely into ions in solution, producing a high concentration of hydrogen ions.
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Weak acids
An acid that does not completely splits into its component ions in solution, and produces a low concentration of hydrogen ions.
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State symbol
Symbols used in balanced equations to show the physical state of each reactant and product; (s) solid (l) liquid (g) gas or (aq) aqueous solution.
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Neutrilisation reactions
A chemical reaction between an acid and alkali (or bases) that produces water and a neutral salt
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Ionic
An electrically charged particle, containing ndifferent numbers of protons and electrons.
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End-point
The point in a tritation at which the two reactants have reacted completely but none of either is left over
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Fungicide
A chemical compound used to kill or reduce fungal growth
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Precipitate
An insoluble solid formed by a chemical reaction, such as the reaction between two soluble salts
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Precipitation reaction
A reaction in which an insoluble solid is fromed
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Fertilisers
A compound added to soil to replace the minerals used up by the plants
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Other cards in this set

Card 2

Front

Having the properties of an acid

Back

Acidic

Card 3

Front

Having the properties of an alkali

Back

Preview of the back of card 3

Card 4

Front

A substance that changes colour on its pH

Back

Preview of the back of card 4

Card 5

Front

Marked with a scale, so that the readings can be taken

Back

Preview of the back of card 5
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