Give the name of the elements present in quicklime

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Question 5 Give the names of the elements present in the following compounds: (a) Quick lime (b) Hydrogen bromide (c) Baking powder (d) Potassium sulphate

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(a) Quicklime is calcium oxide Cao.  The elements in it are Calcium (Ca) and oxygen (O)
(b) Hydrogen bromide is HBR. The elements in it are Hydrogen  (H) and bromine (Br)
(c) Baking soda is sodium hydrogencarbonate, NaHCO3. The elements present are sodium (Na), Hydrogen (H), Carbon (Ca), oxygen (O)
(d) Potassium sulphate is K2SO4. The elements present are Potassium  (K), Sulphur (S), Oxygen (O)

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