Y11 Definitions Flashcards

1
Q

Acid

A

A chemical substance which donates proton (H+ ion) to a base

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2
Q

Base

A

A chemical substance which accepts proton (H+ ion) from an acid

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3
Q

Exothermic reactions

A

Chemical reactions that give out heat to the surroundings

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4
Q

Endothermic reactions

A

Chemical reactions that absorb heat from the surroundings

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5
Q

Oxidation

A

A chemical reaction in which a substance gains oxygen

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6
Q

Reduction

A

A chemical reaction in which a substance loses oxygen

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7
Q

Redox reaction

A

A chemical reaction in which electrons are transferred; one substance is oxidised (loses electrons) and another is reduced (gains electrons)

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8
Q

Oxidising agent

A

A substance which oxidises another substance during a redox reaction, and is itself reduced

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9
Q

Reducing agent

A

A substance which reduces another substance during a redox reaction, and is itself oxidised

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