Carbon Dioxide (2) Flashcards Preview

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Flashcards in Carbon Dioxide (2) Deck (13)
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1
Q

You can collect gases in a test tube full of air. This works because the gas you’re collecting _______________ the air in the tube

A

Displaces

2
Q

The delivery tube is fed directly into a test tube either upwards or downwards. When is which used

A

Upward delivery is used to collect gases that are ‘lighter than air’.
Downward delivery is used to collect gases that are ‘heavier than air’.

3
Q

________ acid reacts with _________ ___________ to produce CO2

A

Dilute

Calcium carbonate

4
Q

Calcium carbonate (marble chips) is put in the bottom of a flask and dilute hydrochloric acid is added. The HCl reacts with the calcium carbonate to produce _________ _________, ________ and carbon dioxide gas

A

Calcium chloride

Water

5
Q

2 ways to produce Carbon dioxide

A

Dilute HCl reacts with Calcium carbonate

Thermal decomposition of Metal carbonates

6
Q

One way of making Co₂ is by heating a metal carbonate. This is an example of thermal _________________.
Copper(2) carbonate is a green powder that will easily decompose to form __________ ___________ and copper oxide when you heat it

A

Decomposition

Carbon dioxide

7
Q

Equation for the thermal decomposition of metal carbonates

A

Metal carbonate –> Metal Oxide + Co₂

CuCO₃ —> CuO + Co₂

8
Q

Co₂ is used in carbonated drinks to make them ________

A

Fizz
__________________________________________
⁰ ¹ ² ³ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ ⁺ ⁻ ⁼ ⁽ ⁾ ₀ ₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉ ₊ ₋ ₌

9
Q

CO₂ is ____________ in water

A

Soluble

10
Q

CO₂ + H₂O —>

A

H₂CO₃ (Aq)

Carbonic acid

11
Q

Co₂ is ________ dense than air so it can sink onto the flames and stop the oxygen that the fire needs.

A

More

12
Q

Where is CO₂ used

A

Drinks and fire extinguishers

13
Q

Increasing CO₂ is linked to __________ change

A

Climate change