Question

44. What happens when limestone is burnt?
(1 Point)
a) Heat is evolved
b)Heat and light are produced
Heat is absorbed
d) Heat and light are absorbed.​

Answer 1

Explanation:

Heating the limestone (calcium carbonate) drives off carbon dioxide gas leaving behind lime, the base calcium oxide. The lime is white and will have a more crumbly texture than the original limestone. ... Adding water to the lime produces slaked lime (calcium hydroxide) in an exothermic reaction.

Answer 2

Answer:

b)heat and light are produced

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