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Chemistry😶‍🌫️🫦🧑‍🦲 > Chemistry Keywords C3.2 C3.3 > Flashcards

Chemistry Keywords C3.2 C3.3 Flashcards

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1
Q

Redox

A

a chemical reaction in which one substance is reduced while another is oxidised

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2
Q

Reduced

A

describes a substance that has lost oxygen, or gained electrons, in a chemical reaction

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3
Q

Reducing agent

A

substance that reduces another substance by accepting oxygen or by donating electrons

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4
Q

Reduction

A

a loss of oxygen, or gain of electrons, by a substance in a chemical reaction

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5
Q

Strong acid

A

an acid that is fully ionised in aqueous solution

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6
Q

Weak acid

A

acid only partially ionised in aqueous solution

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7
Q

Acid

A

substance that ionises in water, releasing hydrogen ions

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8
Q

Alkali

A

a soluble base

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9
Q

Base

A

a substance that neutralises acids forming a salt and water only

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10
Q

Carbonates

A

ionic compounds that contain the carbonate ion

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11
Q

Dilute

A

a solution with a relatively low amount of solute

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12
Q

Neutralisation

A

a reaction between an acid and a base or alkali, producing a salt plus water

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13
Q

Oxidation

A

a gain of oxygen, or loss of electrons, by a substance in a chemical reaction

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14
Q

Oxidised

A

describes a substance that has gained oxygen, or lost electrons, in a chemical reaction

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15
Q

Oxidising agent

A

a substance that oxidises another substance by donating oxygen or by accepting electrons

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16
Q

Ph

A

the relative acidity or alkalinity of an aqueous solution

17
Q

Ph scale

A

a scale that measures relative acidity or alkalinity of an aqueous solution, from 0 (strongly acidic) through 7 (neutral), to 14 (strongly alkaline)

18
Q

Bond energy

A

the amount of energy that must be transferred to break a mole of a particular covalent bond

19
Q

Energy change

A

the difference between the energy transferred from the surroundings to break bonds in the reactants, and the energy transferred from products when bonds form

20
Q

Product

A

the substance(s) formed in a chemical reaction

21
Q

Reaction profile

A

chart that shows the energy of the reactants and products in a chemical reaction

Chemistry😶‍🌫️🫦🧑‍🦲 (3 decks)

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