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Lithium carbonate decomposes on heating ...

Lithium carbonate decomposes on heating while sodium carbonate does not.

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Upon heating `Li_(2)CO_(3)` decomposes to from `Li_(2)O` and `CO_(2)`. The smaller size of `Li^(+)` ion makes the lattice of `Li_(2)O` more stable than that of `Na_(2)CO_(3)`. Therefore, `Na_(2)CO_(3)` fails to decompose on heating while lithium carbonate decomposes.
`Li_(2)CO_(3)overset("Heat")toLi_(2)O +CO(2)`
` Na_(2)CO_(3)overset("Heat")to` No reaction

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