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Identify the endothermic reaction(s) amo...

Identify the endothermic reaction(s) among the following:
(P) `6 CO_2 + 12 H_2O" "overset underset rightarrow ("Sunlight") ("chlorophyll")" "C_6 H_(12)O_6 + 6 O_2 + 6H_2O`
(Q) `Na_2 CO_3 + 2HCl rightarrow 2NaCl + CO_2 + H_2O`
(R) `C_6H_(12)O_6 + 6O_2 rightarrow 6 CO_2 + 6H_2O`
(S) `CaCO_3 rightarrow CaO + CO_2`

A

only P

B

only S

C

only Q and R

D

only P and S

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