The thermal stability of , ,

CHEMISTRY · Single correct · A Level · Chemistry · Group 2 elements (alkaline earth metals) · Group 2 elements (alkaline earth metals)

Problem

The thermal stability of BaCO3\mathrm{BaCO}_3, CaCO3\mathrm{CaCO}_3, SrCO3\mathrm{SrCO}_3, and MgCO3\mathrm{MgCO}_3 decreases in the order: (1) BaCO3>SrCO3>MgCO3>CaCO3\mathrm{BaCO}_3>\mathrm{SrCO}_3>\mathrm{MgCO}_3>\mathrm{CaCO}_3 (2) CaCO3>SrCO3>MgCO3>BaCO3\mathrm{CaCO}_3>\mathrm{SrCO}_3>\mathrm{MgCO}_3>\mathrm{BaCO}_3 (3) MgCO3>CaCO3>SrCO3>BaCO3\mathrm{MgCO}_3>\mathrm{CaCO}_3>\mathrm{SrCO}_3>\mathrm{BaCO}_3 (4) BaCO3>SrCO3>CaCO3>MgCO3\mathrm{BaCO}_3>\mathrm{SrCO}_3>\mathrm{CaCO}_3>\mathrm{MgCO}_3

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