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A clear diagram of a chemistry experiment showing limestone heated in a beaker, connected by a tube to limewater in a test tube with gas bubbles, all labeled.

A clear diagram of a chemistry experiment showing limestone heated in a beaker, connected by a tube to limewater in a test tube with gas bubbles, all labeled.

Use a hard glass test tube with a delivery tube. · Place limestone (or marble chips) in the test tube. · Heat strongly with a Bunsen burner. · The delivery tube goes into a second test tube containing limewater (calcium hydroxide solution). · Label: "Limestone", "Heat", "Delivery tube", "Limewater", "Bubbles of gas". Ver más