What is a Chemical Formula?What is the Significance of a Formula?Give an Example to Illustrate. - Chemistry

प्रश्न

What is a chemical formula? What is the significance of a formula?give an example to illustrate?

टिप्पणी लिखिए

उत्तर

The chemical formula is used to describe the types of atoms and its number in an element or compound.

Significance- Chemical formula is very important when trying to find information about chemical compounds because they tell us about the elements present and the number of atoms in that compound.

Example - Salt - NaCl, ethanol C2H6O because the molecule of ethanol contains two Carbon, 6 Hydrogen and 1 Oxygen atom.

shaalaa.com

Chemical Formula or Molecular Formula

क्या इस प्रश्न या उत्तर में कोई त्रुटि है?

Q 9 Q 8.4 Q 10.1

अध्याय 1: The Language of Chemistry - Exercise 1 (A) [पृष्ठ ९]

APPEARS IN

सेलिना Concise Chemistry [English] Class 9 ICSE

अध्याय 1 The Language of Chemistry
Exercise 1 (A) | Q 9 | पृष्ठ ९

संबंधित प्रश्न

The formula of carbonate of a metal M is M₂CO₃.

What will be the formula of its nitride ?

Correct the following statement:

Molecular formula of water is H₂O₂

Give the empirical formula of Acitic Acid CH₃COOH.

Identify the following substance:

A brown gas D with the irritating smell.

Match the following:

Column A	Column B
(a) Pb(NO₃)₂	(i) rotten eggs smell
(b) CO₂	(ii) burns with a pop sound
(c) (NH₄)₂Cr₂O₇	(iii) the suffocating smell of sulphur
(d) HCI	(iv) lime water turns milky
(e) NO₂	(v) crackling sound
(f) O₂	(vi) residue swells up
(g) H₂	(vii) brown gas
(i) H₂S	(viii) supports combustion
(j) SO₂	(ix) fumes with NH₃ solution