3.1.5 - metal carbonate decomposition Flashcards
1
Q
what is a thermal decomposition reaction?
A
when heat energy is used to break down a substance
2
Q
what do metal carbonates thermally decompose to form?
A
metal oxides and carbon dioxide
3
Q
what is the equation for metal carbonate decomposition?
A
metal carbonate -> metal oxide + carbon dioxide
4
Q
what is downward delivery?
A
carbon dioxide is denser than air, so is often collected by downward delivery - it sinks to the bottom of the tube and stay there until you want to use it
