Essential Chemistry for IGCSE - Metals And Reactivity (Section 1 - No. 50)
What general pattern is observed in the thermal decomposition of Group 2 carbonates?
The decomposition temperature increases down the group.
The decomposition temperature decreases down the group.
The stability of the carbonates decreases down the group.
Magnesium carbonate is less stable than calcium carbonate.
Explanation
The thermal stability of Group 2 carbonates increases down the group, along with the temperature of decomposition.
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