7) Marble and chalk are two forms of calcium carbonate. If equal masses of lumps of marble and powdered chalk are placed in dilute hydrochloric acid. Marble lumps and powdered chalk dilute hydrochloric acid .The marble takes longer time than the chalk to dissolve in the acid. Why is this? A) Marble is more reactive than chalk. B) Marble is more soluble than chalk. C) The marble has the smaller surface area. D) The marble is more basic.
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