Question

solid calcium oxide was taken and water was added slowly. a) write observation. b) write chemical formula of product. c) what hapen when carbondioxide bubbled through lime water d)why do you apply paint on iorn articles​

Answer 1

Heyaa☺

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Solid calcium oxide (CaO) was taken and added to warer⤵⤵

a) Observation :- It feels to hot,heat is evolved hence exothermic reaction with white colour solution.

b) Chemical formula of product⤵⤵

CaO + H2O =》 CaO2 + H2.

Slaked lime is formed. Calcium hydroxide.

c.) When carbondioxide bubbled to limewater it turns to white colour.

d.) We apply paint to iron articles to avoid corrosion.

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Hope you understand..✌