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CC-2224 Chemistry Paper 1 Topics > C5(Chemical Changes) > Flashcards

C5(Chemical Changes) Flashcards

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1
Q

What is the metal reactivity series

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2
Q

What is the gas given off when metals react with water or dilute acids

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Hydrogen

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3
Q

What is a displacement reaction

A

A more reactive metal will displace a less reactive metal from its aqueous solution

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4
Q

What is an example of a displacement reaction

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5
Q

What is oxidation

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The loss of electrons and gain of oxygen

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6
Q

What is reduction

A

Gain of electrons and loss of oxygen

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7
Q

What is an ionic equation

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8
Q

What is example of a half equation for oxidation and reduction

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9
Q

How can metals be extracted

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-The oxides of metals below carbon in the series can be reduced by carbon to give the metal element
-Metals more reactive than carbon are extracted by electrolysis

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10
Q

What is the word equation to make a salt

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11
Q

What acids provide the negative ions present in all salts

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12
Q

What happens when an acid reacts with a base

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A neutralisation reaction occurs

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13
Q

What is the word equation to make a salt using a base

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14
Q

What is an example of how to work out the sum of the charges

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15
Q

What is the word equation to make a salt using an alkali

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16
Q

What is the word equation to make a salt using a carbonate

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17
Q

What is an acid

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18
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What is an alkali

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19
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What is a base

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20
Q

What is the ph scale

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21
Q

What is a strong acid

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Strong acids dissociate fully in water to produce the maximum number of H+ ions

22
Q

What is a weak acid

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Weak acids do not fully dissociate into H+ ions

23
Q

How can the ph value be related to the concentration of H+ ions

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24
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Examples of half equations, ionic compounds and ionic equations

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CC-2224 Chemistry Paper 1 Topics (8 decks)

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