Question

(a) What is a chemical formula ? What is the significance of a formula ? Give an example to illustrate.​

Answer 1

Answer:

(a)

A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.

The significance of a chemical formulas are :-Formula represents the name of a substance. Formula represents one molecule of substance. Formula represents 6.022*1023(one mole) of molecules of a substance. Formula represents the name of the elements present in it.