chapter 4 chemistry

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What is an acid
releases H+ ions when dissolved in an aqueous solution such as water
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what is a weak acid
an acid that partially dissociates/ionises in aqueous solution and releases some H+ ions e.g ethanoic acid, they are involved in reversible reactions
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what is a strong acid
an acid that fully dissociates/ionises in aqueous solution and release all H+ ions e.g hydrochloric acid
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name 4 common acids
hydrochloric acid, sulfuric acid, nitric acid, ethanoic acid
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what is a base
neutralises an acid to form a salt
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what are the 4 base types
metal carbonate, metal hydroxide, metal oxide, ammonia
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what are 9 common bases
MgO, CaO, CuO//Na2CO3, CaCO3, CuCO3//NaOH,KOH,NH3
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what is an alkali
dissolves in water releasing OH- ions
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what is neutralisation
H+ ions react with a base forming salt and water
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name the 3 neutralisation equations
acid + alkali -> salt + water,, acid + metal oxide/hydroxide ->salt +water,,metal carbonate + acid ->salt, water and carbon dioxide
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Redox reactions
OIL RIG oxidation number is 0 for elements, sum of oxidation numbers =total charge
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titrations
use a volumetric flask to make a standard solution, use a pipette and burette and work out the mean titre.
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Other cards in this set

Card 2

Front

what is a weak acid

Back

an acid that partially dissociates/ionises in aqueous solution and releases some H+ ions e.g ethanoic acid, they are involved in reversible reactions

Card 3

Front

what is a strong acid

Back

Preview of the front of card 3

Card 4

Front

name 4 common acids

Back

Preview of the front of card 4

Card 5

Front

what is a base

Back

Preview of the front of card 5
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