Chemical Equations
Physical and chemical change of Class 7
About Chemical Equations
All chemical changes are accompanied by chemical reactions. These reactions can be described in sentence form, but the description would be quite long. Chemical equations have been framed to describe the chemical reactions.
A chemical equation links together the substances which react (reactants) with the new substances that are formed (products).
- Introduction
- Physical Changes
- Chemical Change
- Chemical Equations
- Change Of Physical State
- Difference between Physical and Chemical Changes
- Effervescence
- Change Of Colour
- Formation Of Precipitate
- Crystallisation
- Rusting of Iron
- Energy Changes
- Galvanisation
- Mind Map
- solved questions
- Exercise-1
- Exercise-2
- Exercise-3
