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A student weighed 13 grams of blue CoCl2 and placed it on a watch glass at room temperature. Within a few minutes, she observed that the compound turned purple. When she re-weighed the sample, it weighed 17 grams. Several minutes later, it turned red. When she weighed the sample a third time, it weighed 24 grams. The CoCl2 compound can be described as all of the following except:

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A student weighed 13 grams of blue CoCl2 and placed it on a watch glass at room temperature. Within a few minutes, she observed that the compound turned purple. When she re-weighed the sample, it weighed 17 grams. Several minutes later, it turned red. When she weighed the sample a third time, it weighed 24 grams. The CoCl2 compound can be described as all of the following except:






 
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