Carbon Dioxide and Carbonates Flashcards
1
Q
Thermal decomposition meaning?
A
Reactions where a substance breaks down due to heat
2
Q
What is produced from the thermal decomposition of copper carbonate?
A
Copper (II) oxide and carbon dioxide
Reaction: CuCO3 (s) 🡪 CuO (s) + CO2 (g)
3
Q
How can you test for carbon dioxide?
A
Bubble it through limewater, which will turn cloudy.
4
Q
What is the equation for the carbon dioxide, limewater experiment
A
5
Q
What is a use of carbon dioxide in fire extinguishers?
A
It smothers a fire by being denser than air, preventing oxygen from getting to the fire.
6
Q
How is carbon dioxide used in carbonating drinks?
A
It is slightly soluble in water and can be dissolved under pressure, releasing fizz when the pressure is reduced.
