Final answer:
Yes, a significant amount of carbonate (CO₃2−) would be expected to be present.
Step-by-step explanation:
Yes, a significant amount of carbonate (CO32-) would be expected. In the presence of water, carbon dioxide is produced as a positive test for a carbonate. This reaction can be represented as:
CO32- + H2O → H2CO3
So, when a small amount of acid is added to a sample of the dry salt, the production of carbon dioxide confirms the presence of a carbonate.