Chemistry
Give the names of the elements and number of atoms of those elements, present in the following compounds.
(a) Sodium sulphate
(b) Quick lime
(c) Baking soda
(d) Ammonia
(e) Ammonium dichromate
Chemical Formula
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Answer
(a) Sodium sulphate
Formula: Na2SO4
∴ It contains 2 atoms of Sodium (Na), 1 atom of Sulphur (S) and 4 atoms of Oxygen (O).
(b) Quick lime
Formula: CaO
∴ It contains 1 atom of Calcium (Ca) and 1 atom of Oxygen (O).
(c) Baking soda
Formula: NaHCO3
∴ It contains 1 atom of Sodium (Na), 1 atom of Hydrogen (H), 1 atom of Carbon (C) and 3 atoms of Oxygen (O).
(d) Ammonia
Formula: NH3
∴ It contains 1 atom of Nitrogen (N) and 3 atoms of Hydrogen (H).
(e) Ammonium dichromate
Formula: (NH4)2Cr2O7
∴ It contains 2 atoms of Nitrogen (N), 8 atoms of Hydrogen (H), 2 atoms of Chromium (Cr) and 7 atoms of Oxygen (O).
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