what is a chemical formula?what is the significance of a formula?give an example to illustrate.
Answers
Chemical formula is used to describe the types of atoms and its number in an element or compound .
Significance- Chemical formula are very important when trying to find information about chemical compounds because it 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.
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Significance of symbols is:
1. Symbol represents one atom of the element
2. Symbol represents name of the element.
3. Symbol also represents one mole of atoms of the element.
4. Symbol distinguishes the element from rest of the elements.
5. Symbol is used to represent element in a chemical reaction.
Significance of chemical formulae is:
1. Formula represents one molecule of substance.
2. Formula represents the name of a substance.
3. Formula represents one mole of a substance.
4. Formula represents the name of the elements present in it.
5. Formula represents a definite mass of the substance.
Hope you better understood this.........