Explain why the reaction between calcium carbonate and sulphuric acid would not get to completion

The calcium sulphate is insoluble in dilute sulphuric acid and so you end up with calcium carbonate coated in a layer of calcium sulphate, which stops the acid from getting at the carbonate and so stops the reaction. so you would not get any completion .

a. a primary source combines several different accounts of an event. b. a primary source generally benefits from having been written after an event.

explanation:

nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.