acU3(S) decomposes lhto (S) and CO21g) at 1 atm the air around the reaction decreases in temperature. Rxn: CaCO3(s) → CaO(s) + CO2(g) Which statement is true about the decomposition of CaCO3(s) into CaO(s) and CO2(g) at 1.00 atm? The reaction is spontaneous at low temperatures. The reaction is spontaneous at all temperatures. The reverse reaction is spontaneous at all temperatures.

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