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9️⃣ Chemistry > 2️⃣Oxygen > Flashcards

2️⃣Oxygen Flashcards

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1
Q

What is the composition of the air?

A

Oxygen 21%
Nitogen 79%
Argon 0.9%
Carbon dioxide 0.04%

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2
Q

3 properties of oxygen

A

colourless, odourless, gas

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3
Q

word equation for respiration

A

sugar + oxygen = carbon dioxide + water + energy

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4
Q

what are the 2 products of the reaction when candle wax combusts

A

carbon dioxide and oxygen

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5
Q

what is the equation for oxygen preparation?

A

manganese dioxide
hydrogen peroxide ———> water + oxygen

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6
Q

What chemicals are required for the preparation of oxygen

A

Hydrogen peroxide
catalyst

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9️⃣ Chemistry (16 decks)

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