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CaCO(3(s)) overset("Heat ") to CaSO((s))...

`CaCO_(3(s)) overset("Heat ") to CaSO_((s)) +CO_(2(aq))`
The above thermal decompostion reaction is an ____________ reaction .

A

endothermic

B

exothermic

C

both (a) and (b)

D

neither (a) nor (b)

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