Chemistry
Explain the term 'chemical formula'. State why the molecular formula of zinc carbonate is ZnCO3
Answer
A molecule of a substance i.e., element or compound could be represented by symbols. This representation is known as chemical formula.
As molecular formula also indicates the number of units of the radicals present in a compound with the proper subscript outside the unit of the radical and in the case of ZnCO3, there are 1 atom of Zn and C whereas 3 atoms of O. Therefore, we get ZnCO3.
Related Questions
Explain the meaning of the term 'compound' with a suitable example. State the main characteristics of a compound with special reference to the compound iron [II] sulphide.
Name the elements in the compound and give the formula – of the following compounds :
(a) Nitric acid, (b) Carbonic acid, (c) Phosphoric acid, (d) Acetic acid, (e) Blue vitriol, (f) Green vitriol, (g) Glauber's salt, (h) Ethane, (i) Ethanol
Write the formula of the following compounds :
Potassium
(a) chloride (b) nitrate (c) carbonate (d) bisulphate (e) sulphite (f) dichromate (g) permanganate (h) zincate (i) plumbite (j) sulphate (k) bicarbonate (l) aluminate (m) hydroxide (n) iodide (o) nitrite (p) bisulphite Write the formula of the following compounds :
Sodium
(a) chloride (b) nitrate (c) carbonate (d) bisulphate (e) sulphite (f) dichromate (g) permanganate (h) zincate (i) plumbite (j) sulphate (k) bicarbonate (l) aluminate (m) hydroxide (n) iodide (o) nitrite (p) bisulphite