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A Level Chemistry > Module 2 - Acids and Redox > Flashcards

Module 2 - Acids and Redox Flashcards

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1
Q

formula for sulphuric acid

A

H2SO4

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2
Q

formula for nitric acid

A

HNO3

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3
Q

formula for ethanoic acid

A

CH3COOH

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4
Q

formula for sodium carbonate

A

Na2CO3

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5
Q

formula for sodium hydroxide

A

NaOH

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6
Q

formula for potassium hydroxide

A

KOH

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7
Q

formula for phosphoric acid

A

H3PO4

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8
Q

define a hydrogen ion

A

has no electrons in its outer shell so it is also known as a proton

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9
Q

define an acid

A

in water an acid releases hydrogen ions (H+) into solution (proton donor)

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10
Q

define a strong acid

A

releases all of its hydrogen ions in solution and completely disassociates/ ionises

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11
Q

define a weak acid

A

only releases a small number of its hydrogen ions in solution and partially disassociates/ ionises

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12
Q

define a base

A

a compound that neutralises an acid, by accepting a hydrogen ion, to form a salt (proton acceptor)

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13
Q

what are bases generally

A

metal oxides
ammonia

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14
Q

describe what a base does

A

donates 2 electrons to the hydrogen ion to form a dative covalent bond
bases can either have a lone pair or a negative charge

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15
Q

define an alkali

A

a type of soluble base that releases hydroxide ions

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16
Q

what are alkalis typically

A

hydroxides

17
Q

how is ammonia classified as an alkali

A

it takes a proton from water to form ammonium and hydroxide

18
Q

define a salt

A

the product of a reaction in which the H+ ions from the acid are replaced by the metal or ammonium ions

19
Q

product for metal + acid

A

salt + hydrogen

20
Q

product for metal oxide + acid

A

salt + water

21
Q

product for metal hydroxide + acid

A

salt + water

22
Q

product for metal carbonate + acid

A

salt + carbon dioxide + water

23
Q

product for ammonia + acid

A

ammonium salt

A Level Chemistry (7 decks)

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