Carbon Dioxide (CO2)
The gas is Carbon dioxide, formed by the decomposition of Calcium carbonate it the Marble or Limestone
Ammonia gas (NH3) is given off when ammonia solution is heated.
bob the builder
carbon dioxide is produced when it is heated
Carbon Dioxide is given off. (CO2)
carbon dioxide, when carbonates are heated carbon dioxide is is given off.
Heating limestone causes it to undergo thermal decomposition, releasing carbon dioxide gas. This process forms calcium oxide, also known as quicklime, as a residue.
carbon dioxide [CuCO3 --> CuO + CO2]
It turns dark green and lets of oxegeon decreasing the mass
Oxygen gas is given off when potassium permanganate is broken down. Potassium permanganate decomposes into manganese dioxide, potassium hydroxide, and oxygen gas when heated.
When potassium carbonate is heated, carbon dioxide gas is given off. Potassium carbonate decomposes to form potassium oxide and carbon dioxide.
When Potassium Hydroxide is heated, it gives off water vapor (H2O). When Sodium Hydroxide is heated, it also gives off water vapor (H2O).