Combustion and Corrosion reactions Flashcards

1
Q

What are reactants?

A

Substances you started with

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2
Q

What are products?

A

Substances that are formed

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3
Q

What is an endothermic reaction?

A

Absorbs energy from there surrounding because the products have more energy than the reactants, making it cool, cold.

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4
Q

What is an exthothermic reaction?

A

Releases energy, producing heat, light.

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5
Q

What is combustion?

A

An exothermic reaction

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6
Q

How does combustion occur?

A

When something reacts with oxygen making it burn or explode

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7
Q

What does combustion always need?

A

Oxygen gas

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8
Q

How do bunsen burners produce a blue flame?

A

Burning methane or ethane gas in oxygen

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9
Q

Methane gas/ethane + oxygen gas =

A

water vapour + carbon dioxide

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10
Q

What are hydrocarbons?

A

Highly combustible chemicals

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11
Q

Octane + oxygen gas =

A

carbon dioxide + water vapour

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12
Q

What is incomplete combustion?

A

When oxygen is restricted and does not release as much heat or light as combustion does

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13
Q

What do incomplete combustion produce?

A

Carbon and carbon monoxide

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14
Q

Magnesium + oxygen gas =

A

magnesium oxide

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15
Q

What is corrosion?

A

Chemical reactant hat breaks down some metals to form other compounds.

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16
Q

What is the chemical equation for rusting?

A

Iron + oxygen gas = Iron (III) Oxide

17
Q

What is the chemical formulae for rusting?

A

4Fe +3O3 = 2Fe2O3

18
Q

What substance is always required for combustion to occur?

A

Oxygen gas