Topic 3 #1 Reactons Flashcards by Izziexxxfrogz 🐸🥑 | Brainscape

Q

Reactions of oxygen

A

Respiration
Rusting
Combustion

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Q

Uses of oxygen

A

Welding torches
Rocket fuel
Breathing apparatus in hospitals

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Q

Is oxygen lighter or heavier than air and is it soluble

A

Oxygen is the same density as air and not soluble in water

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Q

Equation for respiration

A

Sugar + oxygen —> carbon dioxide + water (energy)

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Q

Chemical test for water

A

Use anhydrous copper sulfate which changes from white to blue in presence of water

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Q

Equation for finding oxygen

A

Magnesium dioxide
Hydrogen peroxide <——————————->water + oxygen

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Q

Chemicals required for preparing oxygen

A

Hydrogen peroxide
Catalyst magnesium dioxide

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Q

Test for oxygen

A

Relights a glowing splint if done correctly

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Q

Catalyst

A

A chemical that speeds up a chemical reaction without being used up its self

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Q

Exothermic reactions

A

A reaction that gives out heat

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Q

Endothermic reactions

A

A reaction that takes in heat

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Q

Examples of catalysts

A

Magnesium dioxide (making oxygen)
Enzymes (making ammonia)

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