salts & electrolysis

base
chemical that neutralises acids
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alkali
soluble base
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pH scale
concentration of hydrogen ions. the lower the pH number, the more acidic the solutionis.
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soluble
the maximum quantity of a substance that may be dissolved in another. The maximum amount of solute that may be dissolved in a solvent .
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acids become H+ when added to water because
hydrogen has lost an electron
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alkalis form OH- when added to water because
hydroxide ions that make it alkaline
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base examples:
copper oxide, calcium oxide
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alkali examples:
all hydroxides, sodium oxide
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insoluble salts made when
2 solutions mixed and see a solid
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electrolysis:
the separation of pure substances from compounds using electricity
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during electrolysis ions become
atoms. ions must = zero (e.g) 2Br- > Br2+2e
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Other cards in this set

Card 2

Front

soluble base

Back

alkali

Card 3

Front

concentration of hydrogen ions. the lower the pH number, the more acidic the solutionis.

Back

Preview of the back of card 3

Card 4

Front

the maximum quantity of a substance that may be dissolved in another. The maximum amount of solute that may be dissolved in a solvent .

Back

Preview of the back of card 4

Card 5

Front

hydrogen has lost an electron

Back

Preview of the back of card 5
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