Thermal composition of Metal Carbonates Flashcards
1
Q
What products do you get when you heat a metal carbonate
A
Carbon dioxide and metal oxide
2
Q
What is the process of heating a metal carbonate called
A
Thermal decomposition
3
Q
What is thermal decomposition
A
When a substance breaks down into simpler substances when heated
4
Q
What is the equation for the thermal decomposition of copper(II) carbonate
A
Copper(II) carbonate — copper oxide + carbon dioxide
CuCO3(s) — CuO(s) + CO2(g)
5
Q
In thermal decomposition, what do you do with the gas given off
A
collect the gas in a test tube
6
Q
Why does (in this experiment) carbon dioxide sink to the bottom of the test tube
A
It is denser than air
