Question

Explain the reaction of calcium reacts with sulphric acid​

Answer 1

Answer:

The reaction of sulfuric acid with calcium metal produces a coating of calcium sulfate (CaSO4) on the metal. Since the calcium sulfate is insoluble in water, the coating acts as a protective layer thus preventing further attack on the metal by the acid.

Explanation:

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Answer 2

Answer:

The reaction of sulfuric acid with calcium metal produces a

coating of calcium sulfate (CaSO4) on the metal. Since the

calcium sulfate is insoluble in water, the coating acts as a

protective layer thus preventing further attack on the metal bythe acid. In the case of the reaction of sulfuric acid with

magnesium, the magnesium sulfate is soluble in the aqueous

medium, and hence the reaction proceeds until all of the

magnesium is used up, assuming that excess sulfuric acid was

present. When hydrochloric acid was used the reaction

proceeded rapidly, as expected, since calcium chloride is

soluble in the aqueous medium.The addition of the sulfate salt to the water acted in the same

way as the sulfuric acid since the calcium ions from solution

were precipitated by the excess sulfate ion, and again provided

a protective layer on the calcium metal.