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Chemistry > M3 Topic 1 : Chemical Reactions > Flashcards

M3 Topic 1 : Chemical Reactions Flashcards

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1
Q

what are the indicators of a chemical change (5)

A 
temperature change
emission of light
formation of a solid
colour change
production of gas
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2
Q

what are the types of chemical reaction (6)

A 
synthesis reaction
decomposition reaction
combustion reaction
precipitation reaction
acid-base reaction
acid carbonate reaction
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3
Q

what happens in a synthesis reaction

A

two or more simple reactants combine to form a single complex product

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4
Q

what happens in a decomposition reaction

A

single compound is broken down into two or more products

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5
Q

what types of decomposition reactions are there (3)

A

thermal decomposition
Electrolysis
photolysis

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6
Q

what is thermal decomposition

A

the heating of a substance causing it to decompose

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7
Q

what is electrolysis

A

when electricity is used to cause decomposition

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8
Q

what is photolysis

A

when light causes decomposition

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9
Q

what is a combustion reaction

A

a reaction between a fuel and oxygen gas that releases energy

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10
Q

what must be added to activate a combustion reaction

A

a small amount of energy (activation energy)

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11
Q

what are the products of a combustion reaction

A

carbon dioxide and water

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12
Q

what are the products of a incomplete combustion reaction

A

carbon monoxide or carbon and water

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13
Q

what is a precipitation reaction

A

a chemical reaction between two clear solutions that results in a insoluble compound

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14
Q

which substances are soluble (2)

A

all nitrate compounds

all group 1 elements

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15
Q

what is an acid-base reaction

A

a reaction where an acid and base neutralise into a salt and water

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16
Q

what is an acid and reactive metal reaction

A

when dilute acids and main group metals react to release hydrogen and salt

17
Q

what is an acid and metal carbonate reaction

A

when a dilute acid react with a metal carbonate to form a salt, water and carbon dioxide

18
Q

what where some ways indigenous Australians detoxified there food (2)

A

Cyad fruit: soak fruit in water(Leaching) and ferment to remove toxins
Toxic Black Beans: heated, scraped,and leached

Chemistry (12 decks)

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