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Chemistry > C5 > Flashcards

C5 Flashcards

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1
Q

An acid + base = ?

A

Acid + base = salt + water

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2
Q

Acid + alkali = ?

A

Acid + alkali = salt + water

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3
Q

Acid + metal carbonate =?

A

Acid + metal carbonate = salt + water + carbon dioxide

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4
Q

Acid + metal oxide =?

A

Acid + metal oxide = salt + water

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5
Q

Acid + reactive metal = ?

A

Acid + reactive metal = salt + hydrogen

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6
Q

Acid + ammonia =

A

Acid + ammonia = ammonium salt

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7
Q
A
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8
Q

What pH is a strong acid, how much dissociation occurs?

A

0pH - 2pH = strong acid
100% H+ dissociation from base solution

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9
Q

What pH is a weak acid, how much dissociation occurs?

A

3pH - 5pH = weak acid
>100% H+ dissociation from base solution
Often reversible

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10
Q

What pH is a weak alkali, how much dissociation occurs?

A

9pH - 11pH = weak alkali
>100% OH- dissociation from base solution
Often reversible

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11
Q

What pH is a strong alkali and how much dissociation occurs?

A

12pH - 14pH =strong alkali
100% OH- dissociation

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12
Q

What is an ore?

A

a mineral or rock that contains a useful subastnace whaich is mined for profit

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13
Q

What happens during oxidation?

A

Loss of electron which is transfered to another atom, often involves the addition of oxygen and loss of H+ ions

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14
Q

What happens during reduction?

A

when a compound gains an electron, loses oxygen or gaisn a H+ ion

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15
Q

What is a displacement reaction?

A

a type of chemical reaction which displaces a less reactive element from its compound

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16
Q

How are half equations written?

A

in terms of electron transfer, which are lost or gained

17
Q

What is a base?

A

The oxide, hyroxide or carbonate of a metal when reacting with a metal form salts

18
Q

Definition of equlibruim

A

the point of a reversible reaction which the backward and forward reaction is the same. Therefore the amounts of substance remain constant

Chemistry (6 decks)

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