Equal masses of calcium trioxocarbonate(iv) were added to dilute hydrochloric acid at the temperature specified. Under which of the following conditions would the reaction be slowest?
A. Calcium trioxocarbonate ( iv ) chips a 20°C
B. CalcIum trioxocarbonate (IV) chips at 40°C
C. Calcium trioxocarbonate (IV) powder at 20’C
D. Calcium trioxocarbonate (IV) powder at 40’C
Correct Option: Answer is A
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