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Calcium carbonate spontaneously decomposes as shown in the equation below.

$$CaC{ O }_{ 3 }(s)\rightleftarrows CaO(s)+C{ O }_{ 2 }(g)$$

In a particular experiment, a chemist places 100. grams of solid calcium carbonate in a 10.0-L flask at an initial pressure of 1.00 atm. After an extended period of time, the pressure in the sealed flask has risen to 1.02 atm and is constant. Significant solid remains visible.

Which of the following can be inferred regarding the position of equilibrium in this system?

A

The equilibrium position lies far to the left.

B

The equilibrium position lies far to the right.

C

The equilibrium position lies about in the middle.

D

This is not an equilibrium system.

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