Question

given the names of the elements present in the following compounds : (a) quicklime , (b) hydrogen bromide , (c) baking soda , (d) potassium sulphate

Answer 1

Answer:

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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