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Chemistry > Chemical Changes > Flashcards

Chemical Changes Flashcards

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1
Q

Oxidation

A

When a substance gains oxygen

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2
Q

Reduction

A

When a substance loses oxygen

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3
Q

Displacement reaction

A

Where a more reactive metal displaces a less reactive metal from a compund

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4
Q

How are unreactive metals found in earth

A

In their natural state

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5
Q

Equation for a reaction between metals and acids

A

Metal + acid –> salt + hydrogen

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6
Q

Equation for a neutralisation reaction

A

Base + acid –> salt + water

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7
Q

Equation for reaction between metal carbonate and acid

A

Metal carbonate + acid –> salt + water + carbon dioxide

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8
Q

Equation for reaction between metal oxides and and acid

A

Metal oxide + acid–> a salt + water

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9
Q

Redox reaction

A

A reaction where both oxidation and reduction occurs

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10
Q

What methods can mixtures be separated

A

Filtration, crystallisation, simple distillation, fractional distillation, chromatography

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Chemistry (9 decks)

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